Confession

My husband and I are trying to conceive, and we used to have sex at least 4-5 times a week, but here lately the sex just hasn't been good, and we might have sex twice a week now. I'm only 22 and he's just two weeks shy of 25. And it's not that we're stressed over TTC, it's just our entire sex life has changed and I can't get my orgasm. I'm frustrated and irritable most days, and he feels like he can't satisfy his wife and it's taken a big toll on him. We've tried new positions and everything, but nothing is working and it has taken all of the fun out of sex and it's making it very hard to enjoy TTC. I'm honestly a little scared that this might take a negative toll on our marriage if we can't work it out. Does anyone have any advice on what we could possibly do or try to bring the heat back in the bedroom??