I've just started my fertile week and today is the 2nd day in glow, 4th day for Ovia. Which one should I go by? My boyfriend came inside me yesterday (1st day glow, 3rd day Ovia) and then didn't clean himself off before going in again. He doesn't do it often but lately it's been happening, thinking I should be pregnant soon lol. Can you get pregnant the first day of your fertile window?