i have had unprotected sex many times with my boyfriend of three and half years. i have had scares before but nothing like this. when i was a week late i had brown discharge for about three days then a week later i have a light pink bright red period for three days. i have not took a test because i dont know if it is necessarily. through out this month i have had some nausea, i never feel hungry, my boobs are tender to the touch, i have had sharp pains on each side of my stomach. i have been very bloated and some constipation for a while now. i am almost 20 years old my period usually last about 7 days and i bleed heavily. if you have any guess to whats going on please let me know asap