I was about 6-7 weeks when my pants were hard to close as well.. I've always had a tummy, but now I can't fit without them becoming tight and uncomfortable.
I'm now 8 weeks with my first and just wear my exercise pants.. it feels wonderful ..
I am dreading the day I have to get maternity clothes... I may just buy a bigger size jean until that time.
I started showing around 7 weeks........It's my 3rd pregnancy but I havent been preg. in 14 years.....I am using pony tail holders also. No one can tell Im pregnant but I def cant wear certain pants or shirts anymore.......I have only gained like 1 or 2 lbs......
Im taking by your screen name that you already have 4 kids, typically women who arent on their first pregnancy show early. I wouldnt be concerned.
I',m 7 weeks now, but it was about 6 weeks when I could no longer wear my pants either. I can tell I'm alittle thicker in the middle now. I even went out and bought maternity pants, just so I can be comfy. Just wanted you to know, you're not alone.