I had been involved in \"pull-out\" s*x since last March but it doesn't affect my monthly period. I have a regular of more than 28-30 days and a regular of 5 days of menstruation. Then after i had a contact with my bf, the next morning i was bleeding already, very light and still continue for 2 days now. I was quite shocked because my period is yet to come on next week. Very quite unusual. The blood is pinkish and not that sticky as what my monthly period is as always. I didn't feel the cramps i usually feel everytime i have my period. Only i feel the pain at my lower back. My lower abdomen is not that bulky which i usually have during my period. I feel so tired and stressed and sometimes find it hard to breathe in just a few meters of walking. I always want to sleep and really have a hard time waking up in the morning. I always feel hungry but then when i think of the food, i feel like vomitting. Could i be pregnant? Or this is just my menstruation??