Catherine's older brother and you have been together for like 1 year, and you don't know is that he cheated with another girl

Later while you were walking you saw your boyfriend kissing another girl and he saw you, so he went to you and said "lets broke up"You cried because of what he said and he left you so you ran to the house and you saw his sister so his sister immediately came to you and said

"it's okay he doesn't even know that I got you pregnant" she mirk at you