Yesterday my partner ejaculated on my chest, as I was kneeling, and I had no idea it’d run down my stomach. I don’t remember if it went past my jeans and underwear to my vagina. I’m also on the fourth day of my period with a 33 day cycle. Would the period blood have stopped sperm? Is there an egg to cause pregnancy or if sperm lived up to five days will it result in pregnancy? Is pregnancy possible in general in this situation.. I’m worrying so I might get a plan b. Please help