So it's my first month off the pill, AF started 5/12 I took opk around days of mid cycle, nothing. Been paying close attention to my body and around CD 23 I had ewcm, felt frisky and peak opt on 6/5. Doc said to call to get blood test if no af by 6/10. Still no AF but nipples are sensitive and feeling some back pain and mild cramping. Took a hpt, looks neg. But is it too early????