I had my menstruation last October 13. I'm not really sure if it ended on the 17th or 18th day of the same month but I still had brown discharges until October 19 and 20. I had an unprotected sex with my husband last October 21. He came inside. Do you think I'll get pregnant? I usually have 29-day menstrual cycle. I badly need expert advice so please help me :'( I just vomitted a very sour white liquid today, october 29 around 10am..