3rd Trimester! What week does it start?

Question

I'll be 27 weeks tomorrow according to glow I'm already in my 3rd trimester. My Doctor says it starts tomorrow.  Ovia app says 28 weeks which are you girls going by?

Answer

Technically 40 divided into 3 equal parts is 13 weeks and 2-3 days so third trimester would be 26 weeks and 4-5 days

Answer

I'm going by 27 weeks, but most apps say 28.

Answer

Most go by 27 weeks

Answer

I believe it's 28 weeks!

3rd Trimester! What week does it start?

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