Please help me im so afraid and stressed. my periods are irregular. When 4 weeks passed my last period, me and my bf only had genital rubbing. No penetration, and he ejaculated somewhere not near my vagina. But i have aches right in my vagina, groin and sometimes waist and chest. i dont know if im late on my period because the reason my periods are not once a month, they are usually late. it has been for 16 days since our stuff. Also i have white/light yellow vaginal discharge. im so so so afraid! am i pregnant? (Sorry for language)