Sir my girl friend has suffering from a pain under the stomach, and a water like substance came through vagina at that time of pain, at the time body full pain and feeling tiredness, these are the symptoms that comes from after sex, we have did sex actually 4 or 5 times some months, she's period has more changes occurred now. That is, more bleeding happens periods time, she feels more irritation and she said that these are changes that occurred her body, what is the reason behind this? If any problem or she will pregnant?