I have been having a weird cramp on the right side of my belly button for the last 3 days and my (glow)"OV" was Thursday but my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period calendar</a> says today which would be 14 days before AF, its due 7/3 but the cramp is just moving around my belly button, can it be ovulating cramps that im having? Is it normal to go one for 3 days straight? I am TTC so i a tad bit freaked out.