I was on the last day of my period yes still kinda bleeding and my husband didnt pull out in time and he ejaculated inside me. I didnt want to get pregnant again so soon so i did some research and took the plan b pill on the 15th and now the 21st i saw some blood in my underwear and my stomach is kinda hurting is this normal? How long should the bleeding last ? Should i go see my doctor? Please help me