There is no fourth trimester. The first trimester is the first 3 months, the second trimester is months 3-6, and the last is months 6-9.
If there's nine months in a pregnancy then divide by three to get a trimester. Therefore there are three months in a trimester
When a woman is 4 months pregnant, she is considered to be in the second trimester. A typical pregnancy lasts 9 months with each trimester 3 months long.
6 months 3 weeks 6 months 3 weeks
Well, assuming a gestation period of 9 months, as in humans, each trimester would be three months. Sixteen weeks is 4 months so that would be the second trimester.
1-3 Months = the First Trimester 3-6 Months = the Second Trimester 6-9 Months (ie Birth) = the Third Trimester
Here is a simple breakdown of weeks to months to help keep you on track: Weeks 1-4 - Month One (First Trimester) Weeks 5-8 - Month Two (First Trimester) Weeks 9-13 Month Three (First Trimester) Weeks 14-17 Month Four (Second Trimester) Weeks 18-21 Month Five (Second Trimester) Weeks 22-26 Month Six (Second Trimester) Weeks 27-30 Month Seven (Third Trimester) Weeks 31-35 Month Eight (Third Trimester) Weeks 36-40+ Month Nine (Third Trimester)
3 months out of 9 months
Trimester = 3 months. So 15 trimesters = 15-*3 = 45 months = 3.75 years. Trimester = 3 months. So 15 trimesters = 15-*3 = 45 months = 3.75 years. Trimester = 3 months. So 15 trimesters = 15-*3 = 45 months = 3.75 years. Trimester = 3 months. So 15 trimesters = 15-*3 = 45 months = 3.75 years.
3 years = 12*3 months = 36 months. 1 trimester = 3 months so 36 months = 36/3 = 12 trimesters.
Tri means three. So the 9 months of pregnancy are split up into threes. Months 1-3 is the first trimester. Months 4-6 are the second trimester and montsh 7-9 are the third trimester.
just to let you know the first trimester starts from 0-13 weeks and the second trimester is from 14 weeks to the 28th weeks and the 3 trimester from 29 weeks to 40 weeks or whenever you deliver they are not all equal the 2nd trimester is the most difficult and the longest with the last trimester actually being your shortest. Good luck with your pregnacy. :)