Embarrassed.. TMI

Ok, so this is embarrassing, but Everytime me and my husband have sex, I... Well, I poop a little. Like Everytime. It doesn't bother him, he stops cleans up and right back at it. Like nothing happened, but then I'm worried it will happen again so I lose my drive. I have tried making sure I don't have to "go" before. But it still happens. Anyone else ever have this happen? If so how did you stop it.. like he acts like its nothing. But the more it happens the more embarrassed I get, and the less I want to do it.