15 weeks pregnant

Krystal • TTC baby number 2. Aubrey Lynn October 2015 .hairstylist, wife, puppy mom
I'm 15 weeks pregnant, and have avoided sex pretty much since I found out I was pregnant.. one because I was just being careful, and two because the thought of just moving back and forth would make me nauseous. So finally getting over it now and just had sex .. he of.course came in me like normal.. because we are already pregnant... but now it's like itchy in there.. I peed right away. But I just have my culture and the doctor last tuesday.. nothing wrong, no urinary tract infection, no signs of yeast infection.. honestly have no idea.. is it because it's been at least 2 months since we had sex. I have no idea ? Help