TTC BUT CANT

My husband and I have been trying to conceive since August. I had a chemical in October and every month since it's been so discouraging. I am regular with my period and haven't really had issues with it expect painful cramps every so often. I got checked last year and my reproductive system was normal and healthy but since we've had no luck yet I'm really starting to think I'm not as healthy as I thought. I plan on going to the doctor for a check up soon but I am anxious that something maybe wrong or maybe it's just not our time yet