fertile or infertile?

Me and my OH have been together for 2 years now, we have been trying for a baby for around a year and still no sign- my OH has had a problem with drinking and was told around 6 years ago that he has a low spermcount. I keep nagging on at him to go and get tested he says he will but still to this day he hasn't- does that mean he doesn't want children? He always talk about marriage and children and put my hopes up then the next time he seems really off with the idea- I don't know if it could be me that can't conceive, I had an abortion at 16years and wondered if that could affect me not being able to conceive ? Help please? No negative comments it has took me a while to have the courage to write this..