hello sir,i had sex on the fifth day of my period we usd condom and ys a very slight penetration without condom,that i can say was barely touching the vaginal orifice,nxt day also had sex using condom.eventually i had taken unwanted72 the very next day.now i am having lower back pain around pelvic region,the same occurs just before my periods.so is it ok?am i pregnant?will i get my periods soon?