Post sex contractions

🐘🐘🐘 • 👧🏼 born 1/19/16. 👼🏼 lost 9/15/17. 👼🏼 lost 11/26/17.
So I got dicked down pretty good earlier tonight. I'm 34+3. I usually have some contractions and discomfort after, but tonight it's just unbelievable. I can't talk or walk through these contractions and my entire belly is so tight that it hurts my back. I swear I pissed myself through one of em. They're semi regular every 9-10 minutes. Is this normal?!?