Embarrassed....

So I’ve always been shy when it comes to taking to other people about sex, like I don’t even talk to my OB about anything sex related except for when I had my first appointment and asked if it was ok to have sex while being pregnant ( I was 8 weeks at the time) my problem is I have not been that sexually active with my husband that much during this pregnancy. I’m now 17 weeks and 2 days and we only do it maybe once a week, mostly it’s me because I’m tired or just not in the mood. This is different for me cuz when I wasn’t pregnant my sex drive was normal and I understand that since I’m pregnant now it’s just different. I wanted to know if other women who are pregnant ever have a fear of masturbating while pregnant? And is it ok to have an orgasm while pregnant? I’ve read that it’s completely fine and wont harm baby but I just don’t know 😟 if anyone has any advice or has experienced this anything would help. Thanks!