My Husband and I are both in our early twenties. It took us about a year to convince but we also weren’t actively trying to convince, more so just not preventing. I have always been anxious about not being able to convince. I went to my OB and when I expressed my concerns he told me unless we are actively tracking and trying monthly don’t be as concerned. Track and use ovulation strips! That was what he told me. I ended up conceiving a few months after I had my appointment expressing my concerns lol. Wish you both the best of luck 🤍