Is it normal for your farts to smell really bad when you're getting your period, or have your period?

I'm getting my period, or practically have it, sort of... and I've noticed my farts smell soooo bad. It's like a mixture between rotten eggs and dead animal. I have a lot of gas and have been farting up a storm and I'm sick of smelling this disgusting smell. Why do my farts smell so bad when I'm on my period??