You are 3 weeks and 1 day pregnant!

You have 36 weeks and 6 days to go!

Your Due Date Countdown

Your baby is due on Sunday 21st February, 2027

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Your baby is approximately the size of...

A pin head size
A pin head size
Share the size of your baby
Fun facts at three weeks
You:
  • Within hours of being fertilised, your egg will start to travel from your fallopian tube to your uterus. The fertilised egg will then divide into 16 identical cells.
Your baby:
  • Your baby is about 0.2cm (0.1 inches) in total length right now
  • Your baby weighs in at 0 grams

Your Pregnancy Weeks Dates Forecast

Trimester 1
  1. 24th May 2026 1 Week
  2. 31st May 2026 2 Weeks
  3. 07th Jun 2026 3 Weeks
  4. 14th Jun 2026 4 Weeks
  5. 21st Jun 2026 5 Weeks
  6. 28th Jun 2026 6 Weeks
  7. 05th Jul 2026 7 Weeks
  8. 12th Jul 2026 8 Weeks
  9. 19th Jul 2026 9 Weeks
  10. 26th Jul 2026 10 Weeks
  11. 02nd Aug 2026 11 Weeks
  12. 09th Aug 2026 12 Weeks
Trimester 2
  1. 16th Aug 2026 13 Weeks
  2. 23rd Aug 2026 14 Weeks
  3. 30th Aug 2026 15 Weeks
  4. 06th Sep 2026 16 Weeks
  5. 13th Sep 2026 17 Weeks
  6. 20th Sep 2026 18 Weeks
  7. 27th Sep 2026 19 Weeks
  8. 04th Oct 2026 20 Weeks
  9. 11th Oct 2026 21 Weeks
  10. 18th Oct 2026 22 Weeks
  11. 25th Oct 2026 23 Weeks
  12. 01st Nov 2026 24 Weeks
  13. 08th Nov 2026 25 Weeks
  14. 15th Nov 2026 26 Weeks
Trimester 3
  1. 22nd Nov 2026 27 Weeks
  2. 29th Nov 2026 28 Weeks
  3. 06th Dec 2026 29 Weeks
  4. 13th Dec 2026 30 Weeks
  5. 20th Dec 2026 31 Weeks
  6. 27th Dec 2026 32 Weeks
  7. 03rd Jan 2027 33 Weeks
  8. 10th Jan 2027 34 Weeks
  9. 17th Jan 2027 35 Weeks
  10. 24th Jan 2027 36 Weeks
  11. 31st Jan 2027 37 Weeks
  12. 07th Feb 2027 38 Weeks
  13. 14th Feb 2027 39 Weeks
  14. 21st Feb 2027 40 Weeks

Most probable Date of conception

Sometime between

29 May
&
02 Jun