I hope this is the right place to put this, and have namechanged as I am embarassed 
I'm in a very very new relationship having spent the last 3 years on my own. I've had 2 children and my body shows it. My tummy is literally the worst I have ever seen on anyone, stretchmarked all over and loose saggy skin. There is nothing I can do about it, the rest of me is slim, but the tummy and boobs are a disaster.
I'm so happy at the moment, the man I have been seeing is so fabulous. But I am actually mortified at the thought of him seeing me naked, to the extent that I am paranoid that he would dump me. I know the advice on these things is always that if he loves me it won't bother him, but really, I can't bear to look at it in the mirror so god only knows what he will think.
He knows we are takign it slow, but do I mention the reason? I don't know if it's better to say, look, my tummy ain't what it used to be, or just not mention it, but I feel I should let him know I have a problem with it before we're in the moment iyswim.
I know this is a silly thing to worry about in the scheme of things, but I can't stop worrying what he will think. We're both in our twenties, and he's not gone out with someone with children before so I think it will be a shock to him :(
Any words of wisdom?