Is it normal for me to be so uncomfortable?! I'm 15 weeks 2 days. Pregnancy #4. My belly is so sore, my back/butt and my feet!! and I can't be on my feet long at all which isn't good considering I work retail and have 2 boys to take care of! I just feel so useless like I can't do anything because I'm either too sore or too tired :(  I think this is going to be a big baby!!