1 month pregnant: signs, symptoms and development (2024)

Whether you've had a positive pregnancy test result or you've noticed those first early pregnancy symptoms, here's everything you can expect at 1 month pregnant, from changes in your own body, to how your baby is developing in these first few weeks.

We've also included a helpful checklist of what to do at this exciting stage of your pregnancy journey.

One month pregnant symptoms

Missed period

One of the first major signs of pregnancy in the first month is missing your period if you have a regular menstrual cycle.

Sore nipples

Many women reportsore or very tingly nipplesas the first sign of pregnancy. It's down to the increased blood supply to your breasts and it will disappear as your body gets used to thepregnancy hormones.

Fatigue

Extreme tiredness and fatigueare a common early pregnancy symptom.Try to sleep now as much as you can!

Nausea

If you've started feeling nauseous and even actually vomited, it's likely you're experiencing what's known as morning sickness. Despite the name, you'll probably find that this can happen at any time of the day.

Emotional rollercoaster

During pregnancy, you'll experience anemotional rollercoasterfrom feeling glum and frustrated to jumping with joy.

Cramping and bloating

At around 4 weeks nobody else will notice anyphysical changesbut you'll probably be feeling quite bloated, you may even experience cramping and belly pains. Yourbody is making extra blood, you have more fluid and yourhormonal activitywill likely have you in that ‘I feel bigger’ headspace anyway, a bit like it does sometimes just before a period.

A bit of spotting

As theimplantation process begins, you may notice a bit of bleeding. To prepare for the early stages of your baby's growth and development,theplacentawill also produce oestrogen, progesterone, and human chorionic gonadotropin, which is referred to as the pregnancy hormone.

Baby development at 1 month pregnant

Egg into an embryo: When you get your late period, your body sheds its uterine lining and prepares a new one forthe egg. One of your eggs will develop and ovulate.

Fertilising the egg: It takes up to three days for the sperm to meet up with your egg. Once the egg is in place, the sperm will race towards your egg. As soon as one sperm penetrates the egg's lining, your egg is now fertilised.

You now have an embryo: Your embryo will now go down the fallopian tube and grow into a ball about four days afterconception. The embryo will move around until it finds its perfect spot to take base in the lining.An amniotic sac will form around this fertilised egg, and your placenta and the umbilical cord are also forming.

Your baby is microscopic at this point, but,three cell layers are beginning to form.

1.) The ectoderm layer will be your baby's nervous system, hair, and skin.
2.) The endoderm layer, will develop your baby's gastrointestinal tract, liver, pancreas, and thyroid.
3.) The mesoderm layer will develop into your baby's skeleton, connective tissue, blood system, urogenital system, and muscles.

How big is your baby when you're 1 month pregnant?

By 1 month your baby will only be about 6 or 7 millimetres in size, about the size of a grain of rice!

Changes to your body at 1 month pregnant

At this point in your pregnancy, it's unlikely that you will notice any physical changes to your body, despite how much is going on inside. Some women experience bloating but it's from early pregnancy symptoms and your changing hormones rather than a baby bump.

1 month pregnant: signs, symptoms and development (1)

How far along are you at 1 month pregnant?

We appreciate it can be a bit confusing working out how far along you are as the weeks of pregnancy don't fit into months but one month of pregnancy encompasses weeks one to four.

At one month pregnant, you are at the beginning of the first trimester. The three trimesters are broken into the following:

First trimester: weeks 1 to 12
Second trimester: weeks 13 to 27
Third trimester: weeks 28 to week 40+

Checklist at 1 month pregnant

• Figuring out your due date

This is taken as 40 weeks from the first day of your last period. The doctor will work this out for you when you go to confirm the pregnancy but alternatively, you can use our due date calculator to find out earlier.

• Sleep

As the months pass you may have trouble sleeping, let alone when your baby arrives! So get as much shut-eye now as you can.

• Health

Start making a plan for eating well and exercising during pregnancy. If you haven't already, kick dangerous habits like smoking or drinking alcohol.

• Start taking a prenatal vitamin

It's actually advised to begin taking a prenatal vitamin a few months before you start trying for a baby, so if you haven't started taking any vitamins yet it's a good time to start. Be sure it has at least 400 micrograms of folic acid.

Lorna White is a Senior Digital Writer and has written for Mother&Baby since 2020. She has a keen interest in a range of topics, from potty training and nutrition to baby names and maternity fashion.

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1 month pregnant: signs, symptoms and development (2024)

FAQs

How you will know if you are 1 month pregnant? ›

For a lot of people, the first sign of pregnancy is a missed period. Most pregnancy tests will be positive by the time you've missed your period. Other early pregnancy symptoms include feeling tired, feeling bloated, peeing more than usual, mood swings, nausea, and tender or swollen breasts.

Is one month enough to know if you are pregnant? ›

At one month pregnant, you may not experience many — or any — symptoms. However, some of the early signs of pregnancy at one month pregnant can include: A missed period. If you have a regular menstrual cycle, this is perhaps the most telling sign of pregnancy.

How do I know if my pregnancy is developing? ›

The first sign of pregnancy is usually missing a period, about 2 weeks after you've conceived. This isn't always reliable and if your periods aren't regular you might not notice you've missed one. Some women have a bit of bleeding as the egg embeds. Many women also experience tender breasts.

How does your body feel the first month of pregnancy? ›

In the first trimester: You feel tired and possibly nauseous (like vomiting). You gain 1 or 2 kilograms, or maybe less if you have morning sickness. Most of this weight is in the placenta (which feeds your baby), your breasts, your uterus (womb) and the extra blood that you are making.

How to confirm pregnancy in the first month? ›

You may feel your body making changes before you know you're pregnant or you may not notice any symptoms at all. Symptoms of early pregnancy include a missed period, needing to pee more often, tender breasts, feeling tired and morning sickness.

When do you start to feel pregnant? ›

You may feel sick or be sick. Although commonly known as "morning sickness", vomiting and morning sickness can happen at any time of the day or night. Symptoms usually start when you're around 4 to 6 weeks pregnant.

How do I know when I conceived? ›

Last Menstrual Period

Conception usually occurs around 11-21 days after the first day of the last period of a woman who has a regular period. The estimation of conception date is based on this, but is rarely ever exact since it is difficult to know exactly when ovulation occurs.

What is the fastest way to know if you are pregnant? ›

If you typically have an irregular period, you'll want to take a pregnancy test to confirm. Most home tests can detect hCG as soon as 7 days after a missed period. A pregnancy test detects hCG levels in your urine and shows if you are pregnant. Know that a false negative is more likely than a false positive.

What does your stomach feel like at 1 month pregnant? ›

From the first month of pregnancy, many mothers-to-be expect to see the first signs: they usually notice changes in the womb, although the uterus has not yet increased in size, and it may feel somewhat swollen, with discomfort and shooting pain similar to the sensations of PMS.

What are 100% signs of pregnancy in the first week? ›

What are the symptoms of pregnancy?
  • Missed period. Missed period is one of the very first symptoms of pregnancy for those who become pregnant. ...
  • Morning sickness, nausea, and vomiting. ...
  • Tender breasts, swollen breasts, or breast changes. ...
  • Frequent urination. ...
  • Fatigue.
Jan 19, 2024

How soon can I tell when I'm pregnant? ›

How soon you can take a pregnancy test. Step back from the supermarket shelves; you should wait until the first day of a missed period before you do a pregnancy test . This is usually about two weeks after you think you conceived.

How to know that you are pregnant without a test? ›

The most common early signs and symptoms of pregnancy might include: Missed period. If you're in your childbearing years and a week or more has passed without the start of an expected menstrual cycle, you might be pregnant. However, this symptom can be misleading if you have an irregular menstrual cycle.

Where do you touch to feel if you are pregnant? ›

It will still take some time before your belly starts showing that you are pregnant. And yet you will be able to feel that your womb has grown. Lie down on your back and press gently just above the edge of your pelvic bone.

What are five warning signs of a possible problem during pregnancy? ›

If any of the following signs occur, the woman should be taken immediately to the hospital or health centre.
  • vagin*l bleeding.
  • convulsions/fits.
  • severe headaches with blurred vision.
  • fever and too weak to get out of bed.
  • severe abdominal pain.
  • fast or difficult breathing.

Can 1 month pregnancy be detected? ›

The first month of pregnancy is the month that is most overlooked, as until a missed period is noticed suspicions of pregnancy cannot be confirmed, although in some cases there is slight bleeding at the time of implantation. Apart from the obvious missed period, other initial symptoms of pregnancy may appear.

Can I feel my baby at 1 month? ›

Your unborn baby will begin moving around 12 weeks of pregnancy, but you probably won't feel it yet. If you've been pregnant before, you may sense quickening by about 16 weeks in pregnancy. However, if this is your first baby, it's common not to feel movement until 20 weeks.

How do you count your 1 month pregnancy? ›

Your gestational period is, in fact, 40 weeks long, but the counting starts on the first day of your last period (LMP). You aren't technically pregnant during weeks 1 and 2, and by the time you see a positive result on a pregnancy test, you're already considered four weeks pregnant. The first month has already passed!

Would you be showing at 1 month pregnant? ›

You may not start showing in your first trimester but your body is going through changes during this time. Your baby is still forming inside of you. While you may feel different, your body may not look different. Typically, your bump becomes noticeable during your second trimester.

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