SO on the 21st, the last day of my fertile week. he pulled out, and af is due on the 4th. the past couple of days I've been having moderate cramping, and my boobs have been so sore. today I woke up with the worse gas and it hasn't left, I've been exhausted, headaches, and very sensitive. I'm thinking it's just pms, but I did the math (thinking <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> was wrong) and thought my period should've come sooner than the 4th.