New to this and looking for advice

Me and my husband just started trying for our first baby. It was predicted that I ovulated on the 4th. We did the deed in the week leading up to, the day of and again a day or so after. My twin has had problems for a year plus trying to conceive, she's been on meds to help her ovulate, what are my chances of having the same problems? I wanna be hopeful but there's something in the back of my head saying I could have a long struggle ahead of me. And I can't even seek medical help till we have tried and failed for a year. Any advice would be appreciated. :-) thanks :-)