body issues

So my baby is 3 weeks and 1 day and I can't seem to get comfortable with my post partum belly. I got so big when I was pregnant with him and gained 40 lbs. it wasn't until the end of my pregnancy that I started to get minor stretch marks...well now, I see them. I'm flabby and I never was used to seeing my body like this. I even feel uncomfortable shirtless around my fiancée even though he helps me put creams on every night and doesn't mind my body at all. I just wish I didn't feel as uncomfortable and felt more confident knowing that my body went through all of this to make a healthy baby.