That's perfectly normal. Most woman feel that way. I'm 17+5 weeks and the same way. Sometimes you get it back during your pregnancy sometimes you don't. It's all a personal preference.
I wish I had some advice but I too am one that loses interest in sex while pregnant, during my first trimister we barely had sex bc I was sick, in second trimister I had like a 2 week spurt where I wanted it but that's it ha now I'm almost 34 weeks and it hurts to have sex but I still do it for my husband's sanity! Lol
Im 12 weeks and I haveost interest to. I tried the other night with my bf and it was not the best. I couldnt get wet(excuse the term) and it hurted afterwards. I heard men say preg vagina is the best it was not to me.
im 20 weeks and I have no interest at all. I still give out because I feel bad for my man, but I could go with out it honestly.