low sex drive in your 20s???

anyone experience their husband, boyfriend, etc having low sex drive at a young age? My husband and I just got married 6 months ago and his sex drive and interest in sex is practically nothing. I always initiate, will literally offer it to him any time of day, I do everything for him and I just dont feel wanted lately. I know he isn't getting it from somewhere else, but I'm afraid his hormones are off or he depressed and isnt talking to me about it. We just started TTC last month per his request and now it's like he doesn't even want to have sex at all for fun, and we can't make a baby if we don't have sex. I don't wanna keep wasting money on prenatals, tests, OPKs and all that if my sexual advances aren't going to be reciprocated. venting...sorry yall