Hello doctor, my gf recently had 2 close periods between the span of 8 days. Her last, the second period was on, 4 june 11.,we had protected sex on 19, but i did penetrate once without protection, but my semens i did not spill in her. Within 15 hours, he had UNWANTED 72,with a lime water. If the 28 day cycles right, she should be on periods on 3 july 11. But she has been having irregular periods before we had sex,our first. She is 24, height 159 cm