So I am 24 weeks pregnant and the sex is not good. I can no longer lay on my back and that is the only way I can get off. It also feels like a slight burning feeling when he's in me, so we bought lube thinking it'd help but it doesn't. At the beginning with all the extra blood flow it was great. I just don't know what to do because I dread the thought of it because I am so uncomfortable and don't know how to fix it. Any ideas?