Wat do i do?????

there is this guy named neil,and ummm,i was friends with him for a wile,and then i found out he liked me,and i liked him 2,so i told him,and we hooked up at a party,but u see he had a girlfriend at that time,and i dint kno,and then i found out that im pregnant with his baby,but u see i dont talk 2 him anymore after i found out about his girlfriend,and i dont have anyway of callin him or contactin him, and i really wanna tell him that hees gona be a father...