I had a DNC on 12/8/14 and 3 months later i started TTC. This has been very frustrating because I have tried on all my fertile windows and nothing has happened yet. Now the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> says I was supposed to get my period 4 days ago. However, I have taken several test and all are negative 😔. Can someone please comment if they have something that can help shed some light on this confusing subject for me???