How do weeks count in pregnancy?

Question

I'm a bit confused about how the weeks of pregnancy are actually counted. Do they start from conception, or from my last period? Please help me understand how weeks are calculated.

Anuradha Namboothiri · Answer

Just use an online weeks calculator, enter your LMP, and it gives you the exact day. It really helped me plan my work and maternity leaves properly.

Kasturi Majumdar · Answer

It is calculated in weeks because fetal developmental milestones are very specific. Your gynac will confirm the exact gestational age during your first scan.

Ankita Kunder · Answer

Yes, it is always calculated from the first day of your last menstrual cycle.

Shilpa Saraf · Answer

It starts counting from your last period's start date, so you're technically considered pregnant before you even conceive! More weeks means a perfect excuse for extra dessert.

Girija Biswas · Answer

The doctors always calculate from the first day of your last period. I had my C-section scheduled exactly at 39 weeks based on this calculation.

Kamakshi Dash · Answer

It is very simple: count from day one of your last period, not the day of conception. Just download a good tracker app to keep it simple.

Charuleka Chauhan · Answer

I totally understand how confusing this counting is, sweetheart! Yes, the weeks start from your last period, even before your tiny miracle was conceived.

Poonam Talwar · Answer

Tracking the exact week is highly important for timing your gestational diabetes tests. It starts from your last menstrual cycle's first day.