My last period was on December 9 and ended on the 14. I had unprotected sex on Dec. 23 on the day of my ovulation and I wasn't sure if my boyfriend cmd inside me. After having sex a few hours that day I was feeling nausea and my stomach was hurting. Three days later I had brown discharge for two days straight and it was light. On the 26th I took plan B (within 72 hours) and this was my first time taking plan B. On January 4-5 all of a sudden I had a really sharp pain in my stomach and feeling really nauseous . On the 6th that's when I started my period but I had brown discharge instead of my period. The discharge last three days then the last to days it was light redred, then ended on the 11th. Throughout those six's days my stomach hurted so bad, craving but then again loss of appreciate, headaches, body aches, had a running and stuffy nose, mood swings, had got acne out of no where. Til today nothing has changed.