Okay so I'm 19, and a perfectly healthy female. I've been TTC for over a year already with luck when I first started trying last March but that ended in a miscarriage. Since then I've had zero luck.... I'm starting to think I'm infertile because so many people get pregnant "on accident" or just that one time they don't wear a condom they end up pregnant and I don't.... I don't understand why because I'm so young I should be at my most fertile years....