🤰 6 Weeks Pregnant

You are in week 6 of your pregnancy — the first trimester, month 2. Your baby is about the size of a lentil. The heart begins to beat and may be seen on a transvaginal scan.

By the Power Calculators team Updated 5 Nov 2026

Baby is the size ofa lentil

TrimesterFirst

MonthMonth 2

Weeks to due date34

Your baby at 6 weeks

The heart begins to beat and may be seen on a transvaginal scan.
Buds for arms and legs appear; the face starts to form.

Average length	0.4–0.6 cm
Size comparison	A lentil
Days completed	42 of 280 (15%)

Your body at 6 weeks

Morning sickness often starts now — it can happen at any time of day.
You may feel very tired and emotional.

To do this week

Ginger, dry crackers and small frequent meals can ease nausea. See a doctor if you cannot keep fluids down (hyperemesis).

When to call your doctor

Vaginal bleeding or fluid leaking
Severe tummy pain or cramping
Fever over 38 °C
Severe headache, blurred vision or sudden swelling of face or hands
Vomiting so much you cannot keep fluids down

Pregnancy Due Date Calculator

Find your estimated due date, conception date and how far along you are, from the first day of your last period.

Pregnancy Week Calculator

Find exactly how many weeks and days pregnant you are today, your trimester and your due date.

When to Take a Pregnancy Test Calculator

Find the earliest day to take a pregnancy test and the most accurate day, from your last period and cycle length, with implantation dates and test accuracy by day.

Frequently asked questions

How many months is 6 weeks pregnant?

6 weeks is in month 2 of pregnancy as months are usually counted (about 1.4 calendar months since your last period), in the first trimester.

How big is the baby at 6 weeks?

About the size of a lentil.

What should I do at 6 weeks pregnant?

Ginger, dry crackers and small frequent meals can ease nausea. See a doctor if you cannot keep fluids down (hyperemesis).