So I'm already about a 16-18 or 1x in women's clothes and I was wondering what size pants do you think I should buy? I tried on a 2x at Motherhood Maternity and they felt nice and roomie....but this is my first pregnancy and although I say I won't put on more than 20lbs I know I can't guarantee that... Do you ladies think a 2x will be too tight for the 3rd trimester? I'm 15 weeks now and I felt I had room I. Those pants but I don't know how much bigger I will get and any mommies willing to share their pants size during pregnancy I would really appreciate tips before I go shopping!! :)