Underweight?

Breanna

I’m 23 and my fiancé and I are ready for a baby. We have been trying for at least 6 months but no luck. I wanted to start a family fairly young due to being most fertile at this age and whatnot but here I am not getting pregnant. My Gynecologist suggests I wait to have kids because I’m too young 🙄 She also said I’m probably not even ovulating because I am underweight 😓 do any of you have experience with this? Any advice for me?