I felt it a LOT right after I got my BFP, when I was just shy of 4 weeks. Then it got more sporadic, and I'd only feel the "stretching" feeling every so often. Then at about 8 weeks I started feeling it a lot again. I'm 8w4d now. I read somewhere that its not uncommon to feel more stretching and pulling from 8-12 weeks.
I've also noticed that I almost have to "brace myself" when I sneeze these days....I'm guessing that's because the muscles are stretching too?
I definitely have had cramping and stretching feelings in my lower abdomen. That's actually when I first thought about taking a pregnancy test (and the fact that I was a week late lol). When I would cough or sneeze, or stretch in a weird way it would be painful. Not so much anymore, as I'm 9 weeks along and this is my fourth baby (so I'm sure my uterus is used to babies by now lol) but definitely for a month or so. Hang in there!
Krystal & Donovan - 12/2/06
Reagan - 10/2/02
Maximus - 3/10/05
Liberty - 12/11/08
My angel in Heaven 1/7/13