Last month my gf and I had protected sex on 24, she had her period between 17-22. But due to doubt she took unwanted 72. Her regular cycle is of 28 days but sometimes it comes down to 27 too. This month on April she was about to have her period around 13, but she got it on 10th morning 8:30 around, initially the colour was normal but by after noon it has turned into brown and flow was lesser than normal, on 11th colour changed to normal but flow was still less, and by afternoon today 13 her bleeding stopped where her normal period cycle is of 5 days, can she be pregnant!! She has higer level of prolactin although she is not being medicated