so I'm not regular. to the point I use like 6 apps to try to track... most of them have my fertile days as 4th through the 9th.. I've had to pee like crazy and am tired all the time lately. well the 16th 17th and 18th I've had very little bleeding only once or twice a day. my apps say I should get my cycle the 23. I don't know what to think. is my body being weird or could I actually be experiencing early signs??