I swear I was a good 16-18 weeks along with G before my gut was this big. They say it happens with the second though, that you show earlier. There's definitely only one baby in there, so no jokes about twins. I'm at that terrible stage where most of my regular clothes are too tight, but many maternity clothes are just too loose. I swear, with G that stage happened in about week 16(ish) and lasted for a week tops before I popped out and definitely needed maternity clothes. I've been in this stage for a good three weeks so far, and I'm pretty sick of wearing the same few shirts and pants that actually fit over and over again.