Sex after giving birth.

Right, so I had twins 3 years ago. I split with their dad but then we got back together a few months ago. If not been with anyone else in between having my twins and then getting back together. I was obviously really nervous and I’d obviously changed a lot since he had last seen me. Both my body and down there. Things didn’t work out but now I’m so so nervous about meeting anyone else. What if they think I’m horrendous? What if they think it’s disgusting? Or massive? Or just awful?