So confused… 3rd Trimester?

[mrsdee1982]

So, I totally don't know when the 3rd trimester starts.  I tried looking it up online and am seeing anywhere from 25 (which I don't think is right) to 28 weeks.

When does the 3rd trimester start?  

[Deleted]

I have been wondering the same lately. I'm going to consider myself in the 3rd trimester once I hit 27 weeks.

[mrsdee1982]

I'm also going to go ahead and assign myself a special snowflake badge for this, because I feel like

a) I should already know this
b) it can't be this hard to figure out

[mrsdee1982]

Ok, so maybe this isn't such a SS question after all! I will go with 27 weeks too then.

That's next week.

Holy crap.

[mrsdee1982]

double post, replaced by gif 

[Deleted]

Yea basically it depends how you break it up - but 40 weeks/3 trimesters = 13.3 weeks per trimester

So your second trimester ends at 26.6 weeks!

[periwinkledaydreams]

I've seen it broken down into three different ways of measuring.. even 3rds, giving you the 13.33 weeks each, or a more developmentally based breakdown that has the trimesters split less evenly and more based on stages of growth. I can't remember the third way or where I saw this but I'll post if I find it!

[sidneyvicious]

Feb 26, 2015 16:50:02 GMT -5 mrsdee1982 said:

So, I totally don't know when the 3rd trimester starts.  I tried looking it up online and am seeing anywhere from 25 (which I don't think is right) to 28 weeks.

When does the 3rd trimester start?  

Here's a pretty good explanation and calculator.  I'm in third tri as of next week any which way you look at it!  Ahhhhh!


www.baby2see.com/trimester_calculator.html

[mmo2112]

Entering the second trimester: unbridled joy.
Entering the third trimester: fucking terrified.

[missjenniebean]

Excellent question. I have no clue either and have been wondering. Have heard many different opinions. I've heard between the 25-28th week as well.

[periwinkledaydreams]

Feb 26, 2015 17:52:33 GMT -5 sidneyvicious said:

Feb 26, 2015 16:50:02 GMT -5 mrsdee1982 said:

So, I totally don't know when the 3rd trimester starts.  I tried looking it up online and am seeing anywhere from 25 (which I don't think is right) to 28 weeks.

When does the 3rd trimester start?  

Here's a pretty good explanation and calculator.  I'm in third tri as of next week any which way you look at it!  Ahhhhh!


www.baby2see.com/trimester_calculator.html

This is exactly the calculator I was referring to!

[belle0720]

I think my doctor's office/hospital uses 28 weeks as the mark of the beginning of third trimester.

[sgarmand]

Using that calculator, I began second tri on New Year's Day and I'll start third tri on Easter Sunday. If this baby follows the same track, she might be two days early and come on July 4th! Random neat fact that pleases my weird obsession with numbers and associations.

[leenziepops]

Beginning of 28 for me

[wegrowsheep]

According to calculator, 3rd tri starts as early as tomorrow. Since it's also my 30th bday, I'm gonna go ahead and roll with it.

[Deleted]

I've always gone with 27 weeks. The 25 week thing could come from some European schools of thought where they count weeks of pregnancy from conception, not LMP, and pregnancy is 38 weeks long, not 40.

[carolyngrace]

I'm going with 27! We are soooo close I can not believe it!

[laurenlou83]

I like this one, too, because it breaks it down by month/trimester/weeks together so it gives you a good idea!

www.baby2see.com/pregnancylength.html

[cnumbers]

I've been wondering this myself. I'm 26w and one of my pregnancy apps says I'm in third trimester and other sources say I still have two weeks to go.. Confused. Maybe I'll wait until I'm in labour to say I'm in third tri

[leenziepops]

Whoops beginning of week 27. Heres a handy picture.

[billyhorrible]

Feb 26, 2015 20:20:57 GMT -5 budders said:

Feb 26, 2015 16:59:02 GMT -5 @littlebee said:

Yea basically it depends how you break it up - but 40 weeks/3 trimesters = 13.3 weeks per trimester

So your second trimester ends at 26.6 weeks!

This is the math that I follow as well. 

Same