I'm sorry it took so long for you to get a reply. First of all, having a prior miscarriage should not affect your chances of getting pregnant again, so I wouldn't worry about that. As for not being able to conceive right now, keep in mind that it can take a normal, healthy couple up to a year to conceive, so unless you've been trying for a year, I would definitely give it a few more months before worrying about not getting pregnant. The ovulation tests should help!