Husband doesn’t like having sex with me?

So today my husband told me one of the reasons he doesn’t want to have sex with me much is because his penis is too small to fit into my vagina.

Im a plus size girl. He doesn’t have the biggest penis in the world. I feel horrible about myself and my weight as it is. Are there sex positions we can try? Im in the process of trying to lose weight. I just feel sad.

Edit: he says it’s not so much my vagina but I have a big ass. He says it gets in the way when he tries to put it in so his penis doesn’t go all the way in my vagina. But I can feel it lol so I say otherwise. Idk I’m just kinda hurt over this comment.