Quote:
Originally Posted by Kayles1/8/08 just thought it was...1-12 weeks..first 3 months..13-24 weeks 2nd trimester then 25-40 last 3 months..
confusinnng |
That's when you figure gestational timing... 9 months actually pregnant.
For medical timing which we are all on it divides by 40 weeks*7 days = 280 days... Each trimester is 93 1/3 days long. or just over 13 weeks each trimester.
so:
First trimester = week 1 through week 13
Second trimester = week 14 through week 26
Third trimester = week 27 through week 40.
280 days.