It'd be a long road to finding out if you're able to have children or not. First, you would have to try for 6-12 months, consistently, before your regular doctor/OBGYN would refer you to a fertility specialist. From there a specialist would test the man's sperm and run tests on you.
And then from there they'd decide the best course of action. Whether it be medication or in vitro fertilization or whatever. This does get very expensive. So I would definitely keep trying the natural way. It can take a healthy woman 6-12 months to conceive.
Are you using any method to determine your ovulation/fertile time?
its a bunch of different factors. for some couples its not easy