Im 15 years old and I've had my period for 3 years, it started becoming regular I think last year as it comes every month. The thing that worries me is that it doesn't come on the same day every month like it randomly will come on the 20-26 day of my cycle, which I know is really short. I also know this is bad that I might be ovulating a couple days or maybe a week before as I get that egg white discharge for a couple days and then have brown discharge sometimes before my period starts. Just a couple days ago I got my period, I think, because I got a lot of dark brown discharge and only a little fresh blood and I just had it for about three days; I'm not sure if it will come again as its been a day since. My family hasn't had any fertility problems in the past and I have three other siblings so I should have normal cycles. Please tell if this is normal for my age, I ask a lot about it but everyone says it's normal and online it says it's not. I know I shouldn't worry about this until I'm older but not being able to have kids is my worst fear. Lastly, if this does mean I'll have problems conceiving in the future is there anything I can do to help get a normal cycle now?