What week do you consider the third trimester?

woahitszdtet · October 2015

Is it just me or does it get a little confusing? Lol.

ntyravgsp · October 2015

Probably around 28 because that's when my OB switches to bi-weekly appts.

MrsB915 · October 2015

Technicly 40÷3=13.3 so third tri starts at 26.7. I rounded up to 27w.

essentialpeace · October 2015

I use the chart below.

ETA: I don't use it for the months portion.

Chelsey092 · October 2015

27 weeks.

Mommyduclos · October 2015

I've always considered it at 28 weeks. Though when I really think about it- that's probably a little late if I do the math, but I sure don't mind making the third trimester a little but shorter ;-) it just seems to be when the Drs consider the third tri.

QueenCarlissa · October 2015

Some say 27 some say 28 they are right next to each other so whichever one your ready to say your in your last trimester at. Baby will come when baby is ready anyway.

maureenmce · October 2015

My OB considers 28 weeks the start of the third tri. That's why I have a 28 week appointment (and it's also when I do the glucose test, fun!) The app I have on my phone also says the beginning of the 28th week is the start of the first trimester.