Sad After Anal?

Enna • Love | Life | Relationships | Sex | Intelligence
I just had anal sex today with my boyfriend. It was the first time I've done anal with anyone in a really long time. I wanted to and I enjoyed it, and there was no shortage of foreplay or other positions first. But now, I'm feeling a little bummed out. Does anyone else experience this after anal or just after sex in general? I haven't felt this way before.