The way i see it is....there aren't only 4 weeks in a month sometimes there's more, so if u were 7 months at 28 weeks u'd be going up to 10 months or so by ur due date.
I go by weeks but then ppl ask how many months is that? Lol
When I got my EDD (coz baby was unplanned and I was intersted when I conceived) I worked out 40 weeks back from my due date, which is 26th December...and 40 weeks earlier is 21st of march...so on the 21st on the month I will add another month on lol!
So on the 21st of november when I'm 35 weeks I will be 8 months pregnant
Ahhh is that even right? Haha why are months confusing!