I'm confused. According to this app my AF should of arrived 2 days ago.. It's know to be a little off track sometimes though. I don't have cramps today or yesterday. I did about a week ago though. Boobs have been sore for almost a week and heavier. Lol my husband says they are prego boobs not period boobs. I was pregnant a cpl months ago but had a miscarriage. I woke up this morning with extreme heartburn! Took a preg test 2 days ago bfn. This is driving me crazy!!