Venting

My SO and I hardly ever have sex, even before I got pregnant. My SO has really bad anxiety and we are just never in the mood at the same time, he says it doesn't bother him but I feel bad sometimes because I thought men needed to have sex every so often and I know if I am not pleasing him at home it may become an issue some day and possibly lead him to cheat. So to make things worse since I've been pregnant I have had a hard time getting wet we have only done it 3 times since we found out I was pregnant I'm 13 weeks! Has this happened to any other pregnant ladies? Any advice? It feels like we were so much more into each other sexually before we got married. We get along great and we have only been married for almost 2 years I hope this issue doesn't get any worse 😓 any advice would help