Pregnancy week by week / Week 5
5 weeks pregnant
That’s 2 months — the first trimester, with 35 weeks to go.
Baby size at 5 weeks
Your baby is about 0.1 cm (0.0 in) long — roughly the size of an apple seed.
What’s happening at 5 weeks
The tiny heart begins to beat this week and the major organ systems start to develop. Early pregnancy symptoms like tiredness and nausea may begin.
Common symptoms at 5 weeks pregnant
- •Nausea starting
- •Extreme tiredness
- •Frequent urination
- •Food aversions
- •Sore breasts
Every pregnancy is different — you may have all, some or none of these. Contact your doctor or midwife about anything that concerns you.
Count down to your due date
If you’re 5 weeks pregnant today, your due date is around Tuesday, February 16, 2027. Adjust the date below and create a free countdown to share.
First day of your last menstrual period (how doctors date a pregnancy)
⚕️ This is an estimate based on Naegele’s rule (40 weeks from your last period). Only about 1 in 20 babies arrive on the exact due date. Always confirm with your doctor or midwife.
FAQ
How many months is 5 weeks pregnant?
5 weeks pregnant is about 2 months, in the first trimester.
How big is the baby at 5 weeks?
At 5 weeks the baby is about 0.1 cm (0.0 in) long — roughly the size of an apple seed.
What are the symptoms at 5 weeks pregnant?
Common symptoms around 5 weeks include nausea starting, extreme tiredness, frequent urination, food aversions. Symptoms vary a lot from person to person — contact your provider if anything worries you.
When is my due date if I am 5 weeks pregnant?
If you are exactly 5 weeks pregnant today, your estimated due date is around Tuesday, February 16, 2027 — 35 weeks from now. Use the calculator below with your real last-period date for a personalised estimate.
See every stage on the pregnancy week-by-week guide or open the full due date calculator.