hi. it could be a number of things, you don't say how old you are? sometimes if you're older it takes longer, or maybe you're still breast feeding? the kind of contraception you've been on? stress from work? stress from not getting pregnant? your husband/partners age? tight pants? (for him!lol) alcohol will affect his sperm, having sex to often, not giving his sperm chance to get strong? doing it at the right time of the month? have you been checked by your doc? if all your answers are no i think i'd make an appointment with my doc. i went to doc at 6months of trying, he gave me a few tips and 2months later i was pregnant. if you've already had a chat i'd go back for swabs to rule out any infection that you don't know you have as that can happen. you could both have further tests if doc recommends it, if not try what mum21 did. best of luck!!