What do you consider the start of the second trimester?

rooonilwaazlib

Some of us are almost there!! There is much confusion (amongst my five pregnancy apps, my doctors, my wife, and me) over when the first trimester ends and when the second trimester begins. What are your thoughts?

ladystout08

Not soon enough. lol

For real though, if you divide 40/3 it's 13.3(repeating) so I'd consider it half way through week 13. 

rooonilwaazlib

Ahahahaa so true @ladystout08

rooonilwaazlib

@ladystout08 the doula we are hiring agrees. Although she considers full term to be 41+1. So it still pegs you somewhere mid to end of week 13. Hence all the confusion! 

sparkymcgeee

I figure at 13. I know some people think 12 but I don't until you reach 13. So two weeks for me. 

galactickates

I thought it was 13+3  for exactly @ladystout08 's  reasoning. Next week I'll be in second tri!!! I can't believe it!

DLpanda08

I always thought it was 12 weeks, but I did the math and learned something new. I like things to be even though so I just round up to 14 weeks. Less than one week to go until 2nd Tri for me!!! 

tosh24

Mathematically, I know it's 13+3 but I consider it 14 weeks because that is the first full week of 2nd tri and I like things to be neat and tidy....

dubcompanion

Based on my LMP, I’m 12+4, but LO measured 6 days ahead at the NT scan last week. So theoretically, if growth stayed constant, LO would be measuring 13+3 today. Can I technically be in 2nd tri today? (Wishful thinking!)

libertymomrn

I tend to call it 14 weeks, but mostly because it really bugs me that they count from your LMP, which means you jump to 2 weeks pregnant at the moment of conception. So I think the later one is the closest to accurate considering you’re not really pregnant for the first 2 weeks.

galactickates

@dubcompanion I say yes!!! Congrats on second tri!!

BitterBetty12

I like the latest possible date - 14+1 because it makes me feel like I’m safely and definitely into Second tri!

KLS123

@rooonilwaazlib I'm so glad you posted this. I have been having an internal debate on when the second tri starts in my head but felt like it was a stupid question to ask. The discrepancy in answers on this thread is so validating. 

kaf1788

Mathematically I agree that it is 13.3 but I am extremely impatient for the first trimester to be OVER. So I will be pronouncing myself to be in the second trimester on Friday when I am 13 weeks.

MrsPyrowiz

13.5 because that's what my midwives go by.  Lol

sweetyjenj

Literally, I know it's somewhere in the middle of week 13. I would say I'm "solidly" in the second trimester at week 14, but mentally for me I consider entering week 13 to be entering the second trimester, just because. Kind of like how I consider myself a year older when I'm a few days away from my birthday. If someone a week before my birthday asks how old I am (which happens much less as I get older, thankfully) then I say i'm my upcoming new age. At 13 weeks I'm "basically in 2nd trimester"

libertymomrn

sweetyjenj said:

Literally, I know it's somewhere in the middle of week 13. I would say I'm "solidly" in the second trimester at week 14, but mentally for me I consider entering week 13 to be entering the second trimester, just because. Kind of like how I consider myself a year older when I'm a few days away from my birthday. If someone a week before my birthday asks how old I am (which happens much less as I get older, thankfully) then I say i'm my upcoming new age. At 13 weeks I'm "basically in 2nd trimester"

Maybe it’s because I’m old, but when someone asks me my age the day before my birthday I still don’t round up; I cling to the age I am for as long as I can!

snackheart

I like to count 14 weeks as second tri, 28 weeks as third tri, because that leaves just 12 weeks of miserable third trimester to slog through.

rooonilwaazlib

@sweetyjenj @libertymomrn when someone asks me how old I am I just always have to subtract the year i was born from the current year because I can never remember my age!  

UnbreakableKimmySchmidt

I was 30 when DD was born so now I just add 30 years to her current age when I have to think about how old I am .

emmaaa

snackheart said:

I like to count 14 weeks as second tri, 28 weeks as third tri, because that leaves just 12 weeks of miserable third trimester to slog through.

ALL OF THIS

angiesbump

Definitely 14 weeks for my self.. although I think it’s technically 13 + 3 like others have said.. I just go by the start of week 14 is second trimester