Last month <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> said my fertile week was the 4th through the 10th. I took ovulation tests and ovulated the FIRST day. So now I'm supposed to ovulate on Monday so I figured I should check early. Do you ladies think I should start checking on Friday or Saturday? Opinions? Do you think I'll likely always ovulate on the first day of my fertile window? Thanks!