Am I pregnant. ??? 😳😳😳😳

I keep having white discharge come from my body (obviously) and be and my bf had unprotected sex. Like we went for like a good 3 min before he went and put a condom on. Now my chart says that my period is suppose to come on Friday but I'm having a lot of white discharge. I know I shouldn't stress or it'll delay it but I'm freaking out because no I'm not ready for a baby but I alos think my period is gonna come cause my breast are a little sore ....