Period 2 weeks early??!!

Lorena
My husband and I have been TTC for our #1 for 9 months now. We are both 32. I recently had my period on Jan. 22nd and recently started using this <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a>. According to the app my fertile days were these past few days with Feb. 2nd being my peak. I had some spotting yesterday morning (Feb.3) that then turned into heavy bleeding and has continued through today. Is it my period? I'm not suppose to get it until Feb. 19th.. I'm so confused as to whether I ovulated or not. I just had my period 2 weeks ago and it seems like I have it again. This whole thing has been frustrated!! Has this happened to anyone? I would appreciate any response/advice. Thank you!