What does this sound like?

Kelsey • Happily married•Mommy to a sweet princess and 2 boys• One on the way•

Hi, ladies. I'm 37+1 and my DH and I had sex. During sex, he stopped because he noticed blood on my leg, like a small clot about dime sized, but I wasn't hurting, so we kept going. There was also blood on his penis. After, 20 mins later, I'm still bleeding and having period-like cramps, which I'm assuming are small contractions. Is this normal or should I call L&D;?