Has this happened to you? If so, what did you do?

Okay so the other night my husband and I wanted to get intimate, I am 16weeks but I'm pretty big since this is my 3rd baby.

Since my belly is big I don't feel sexy at all so I wore this sexy outfit that covers my belly but it still showed a bit. We were kissing and things were getting good so I gave him a BJ and he came. . . . but after he came he couldn't get it up anymore and I was sooo ready to get mine and he couldn't perform!! So I got mad that he couldn't. I questioned everything, like was it me not being sexy, do I not turn him on, is he cheating so he can't do it again, did he jack off, or is he just tired from work because he has been working a lot. But then I'm like we haven't had sex in months that I'm like shouldn't he be able to give it more since he hasn't gotten any. Am I being crazy for having so many questions? At this point I don't even want to try again because I feel angry/sad at the same time.

What would you do?