Discouraged

I really want a baby so I decided to get my Nexplanon implant removed, and my boyfriend and I have been having sex regularly, I’ve been tracking my ovulation and everything. I’m only 21 so I shouldn’t have so much trouble, but it’s been 6 months now and I still get my period every month! I have a short cycle, it is only 23 days, and it’s NEVER late. It’s been like clockwork and it is so upsetting. I will pay super close attention to what I’m feeling and get excited because I think I finally did it!! And then a few days later, the red river flows. I think I am infertile... I shouldn’t be having so much trouble with this at my age especially with my family history of being EXTREMELY fertile. :(