Cramping and intercourse

Janna • Mom to angel twins born sleeping at 18w and a chemical baby. RIP Maven and Macie and Littlefoot.
I lost my twin girls at 18 weeks last week to TTTS. I ended up having an induced birth (not a DnC) on Wednesday of last week. 
I know bleeding and cramping are normal but my cramping has gotten much more extreme this morning.
I should mention, we did have intercourse last night. I know you aren't supposed to but we both needed that intimacy (no judgement please).
Do you think the increased cramping is due to the intercourse or something I should potentially be more concerned about?