15 week contractions

Lindsey
Please help, my husband and I have had sex, I'm 14 almost 15 weeks and almost everytime we are done i contract, to day was worse then any others. But it's just after sex it's sometimes during the day too.  My dr. Said that's not normal when I told her at my 12 week appointment but didn't seem to worry about it much. But the one today really scared me. 
Should I go to the er? 
I'm oviously going to call my dr tomrrow (Monday) 
And yes I have drank a crap ton of water! 😂👍🏼
Thank you!!