Postpartum Sex

So I’m 3 months postpartum and my boyfriend and I haven’t had sex since July...and I really don’t want to. I’m not worried about it hurting or anything the idea of it just really stresses me out. One of my mom friends had sex 4 weeks pp and the other waited (maybe) two weeks, so I don’t want to talk to them about it. My non mom friends say they could never imagine going so long. I know it’s bothering my boyfriend and he’s brought it up multiple times...I just get upset even thinking about it. Any advice?