When do you start the 2nd trimester?

Question

My OB with my son went by week 13 beginning the second trimester. I see now on here ladies are going by week 14 starting the 2nd. I'm 13 weeks today and am confused which trimester I'm in lol.

Answer

It's half way through week 13 technically, so can be either really.

Answer

This photo explains all the confusion.

Answer

This is how most doctors count your weeks

Answer

I hope this helps x

When do you start the 2nd trimester?

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