Well, months are a little longer than 4 weeks so that's how I work it in my head, plus I like to think behind vs. ahead ... I don't know why, but it makes it feel like it goes by faster for me. I won't let myself say 7 months until I really only have two months left. Just one of the way my crazy brain works, lol.
Anyway, however you calculate it, Happy 7 Months Cristan and Jessica!