People keep mentioning they are beginning to wear their maternity pants and I am getting nervous. I am 13 weeks 2 days and although my pants are a little snug, I am not close to the maternity pants stage. I also have gained no weight and not because I am sick. I have very little MS and a good appetite. I saw a healthy baby two weeks ago on the ultrasound, but I don't see the baby again for another week. STMs when did you start wearing the maternity pants with your first. Please put my mind at ease.