Thanks guys :) this really helpes.
Because months are more than 4 weeks, you would be 7 months and change.
I'm sure ppl have seen this but this is the way doctors measure pregnancy in trimesters/months/weeks
First Tri
1st Month - Weeks 1-4
2nd Month - Weeks 5-8
3rd Month - Weeks 9-13
Second Tri
4th Month - Weeks 14-17
5th Month - Weeks 18-21
6th Month - Weeks 22-26
Third Tri
7th Month - Weeks 27-30
8th Month - Weeks 31-35
9th Month - Weeks 36-40
4x8= 32.
4x7= 28.
Weeks times the month equals first week of that month.
OK. Since I'm 28 weeks pregnant that makes me 7 months pregnant
At 31 weeks you started your 8th month. So you are in your 8th month having completed over 7 months.