Dating for the first time in 4 years

I gained 100lbs during pregnancy and PPD 6 years ago and the weight stayed up until this point. I lost only 55lbs so I have a ways to go.

I’ve been seeing this guy for a couple weeks now and it’s getting that point where we want to get intimate but I’m so nervous about my body. I worry he won’t like what he sees. I also want to feel confident naked in front of him.

Help!! Any advice?