Hey I’m panicking about being pregnant—

Could I be pregnant? My boyfriend and I dont have sex, but he fingers me and even though he washes his hands, I’m scared that he might have precum on his hands. I’m supposed to start my period in 4 days and for some reason I’m having almost no PMS symptoms only cramps and usually for PMS my boobs hurt and right now they don’t at all. So could I be Pregnant from being fingered if he had precum on his fingers? And is it normal that my boobs don’t hurt and I’m supposed to start my period in 4 days?