My boyfriend and i had sex dec 13. My last AF was November 25, and was not expecting my AF again till January 4, 2016. Im not sure when i ovulated, but according to the Internet calculators, the dates were dec 12 -17.. dec 26 i started bleeding it was really light ( i just needed a panty liner) for like maybe 1 1/2 days then it went to brown discharge for 3 days or so; 9 days before my AF was due, i didnt have any bleeding on the 4th.. but i did have nauseous the 6th and 7th and mild cramping and lower back pain no more nauseous but i have no appetite.. i didnt have implant bleeding with my daughter so im not exactly sure if it was implant bleeding aor just af coming earing than expected.. ive been using thses period trackers since july and they seen to be pretty accurate..

Anyone