Loss of sex drive? TTC #1

I lost my virginity to my husband at age 25, we have been trying to conceive for about 6 months. In the beginning we had sex more due to trying but in recent months, I totally have no desire for sex. I think something is wrong with me because I never had a desire to have sex. When I was younger, I would masturbate but not anymore...? Help please! It’s completely gone for the past 2-3 months. Are my hormones out of whack or something?