Dear ladies! Who has experienced something like this during pregnancy?…

Dear ladies! Who has experienced something like this during pregnancy?! Gestation period: 24 weeks (full) During intercourse, there is often a contraction, usually passing quickly and without pain, (I have a low placenta). Intercourse happens extremely rarely and delicately. The last time the contraction lasted probably for an hour after intercourse and slightly ached in my side, but as if just muscles. As soon as the contraction passed, the baby moved and again instantly a hard abdomen... I was very worried, now I'm afraid of having sex...and as it happened only now, I wanted to do it all the time, not at all before. What can be done so that the contraction passes faster? Maybe take a bath afterwards