Does anyone fear of not being able to conceive?

I'm 22 and I have anxiety/depression. I got my first AF at 9 and I would like to TTC this upcoming year 2017. I'm just so scared that I will not be able to because I got my period when I was 9 and now my AF have been short in the past 8 months. I spoke to a doctor about it and he said he is not concerned. I just feel he just threw me off in way. Bleeding lasts only 2 days and 1 day of brown spotting. I do not know any young person who has short bleeding like me. It's just so scary that after speaking to a doctor I have no other options or reasons why I only bleed for 2 days. A couple days ago I watched a soap opera about a woman who couldn't get pregnant so she went to Paris to see a fertility specialist and they've told her she can never have children ever. I know it's just a TV show but seeing that triggers me so much 💔😭😪 But also seeing so many older women getting pregnant now with help gives me hope. My high school teacher who had trouble for years finally got pregnant with a baby girl at 33 and then had another baby girl at 37. 🙏🏽💕