When is the 2nd Trimester??

iVillage Member
Registered: 09-30-2010
When is the 2nd Trimester??
 6 Fri, 12-31-2010 - 5:24pm

I always hear arguments on this!! I'm 13 weeks, 1 day today... Some sources say welcome to the 2nd trimester while others say not until 14 weeks. I know it doesn't MATTER but curious minds want to know :)

iVillage Member
Registered: 12-14-2008
 In reply to: elizabethallred Re: When is the 2nd Trimester?? Fri, 12-31-2010 - 5:38pm

i have read both 13 and 14 as beginning of 2nd T..Well regardless you and i will be there by next week..i am thinking i am in 2t and that's until 27 wks and then 28 on will be 3t..I am sticking to that. lol

iVillage Member
Registered: 09-15-2010
 In reply to: elizabethallred Re: When is the 2nd Trimester?? Fri, 12-31-2010 - 6:04pm
Most of the sites/books I've read seem to count 13 weeks as the first week of second trimester. That's the number I'm going by!
iVillage Member
Registered: 07-06-2003
 In reply to: elizabethallred Re: When is the 2nd Trimester?? Fri, 12-31-2010 - 6:28pm
I went by the 13 week mark..
iVillage Member
Registered: 07-16-2009
 In reply to: elizabethallred Re: When is the 2nd Trimester?? Sat, 01-01-2011 - 1:41am

I know it is arbitrary and silly too - I mean why not divide it into four and have quarters?! but I agree... it would be nice to have a hard and fast definition! Even the law varies...

What I love is the ones that says it is over after 12 weeks... OKaaaaay... 12 +12 =24 + another 12 = 36 hmmmm... but that means the third trimester is SIXTEEN weeks!!! No wonder it seems so long...

Okay... so 40/3 is 13 1/3 weeks per trimester.... problem with that is that for the first two weeks of the time period the fertilized ovum does not exist.

iVillage Member
Registered: 11-12-2010
 In reply to: elizabethallred Re: When is the 2nd Trimester?? Sat, 01-01-2011 - 10:50am

River, that was hilarious.

iVillage Member
Registered: 09-30-2010
 In reply to: elizabethallred Re: When is the 2nd Trimester?? Sun, 01-02-2011 - 10:54am

LOL Thanks for all the answers! Um... I like 13 weeks better than 14.5, haha!