Pleas read?

hey I have a qu for everybody out there...my best friend Amanda did something that she is hate now ...her and her B-bf have the on her period was on Nov 5 and all thought it and .he *** in her. and her bf broke up and she sleep with a friend on Nov 26 andon nov 28..she is prego and the guy she sleep with wear a condom ..would she be prego by for the bf right R the friend .....