what does this mean?? -ovulation test

So this is my first month trying to track my cycle. My baby was born 6 months ago and I've had 3 periods since then so I thought something was up. Going by the 28 day general rule my period should start tomorrow, but I'm showing all signs of ovulation so I decided to test. It says pretty clearly I'm ovulating right now so what's up? Would this mean my cycle is longer? Because that might change some things about the father of my daughter..