Is My Girl Pregnant>?

Ok... one thanks for Reading this......... and well me and my girlfriend had and well.... i "came" in her but she doesn't know. Now We Both Have Smoked Weed but i still smoke that includes bogie's. im looking up about this and it says that lowers the chance is that true? ive also had before like 2 day before and i want to know does that also lower that chances.? and no i dint use a condom.. i sorta got wd up in the situation.. and yes it was a dum idea so please dont complain.. if u anwer this it means alot to me thankz