Advice needed

6 months preganant. . . Recently found out my (now ex boyfriend) was meeting up with a girl dec.8 , Exacly Janurary 8 he received a message from the girls cousin saying he needs to pay for abortion ... ex boyfriend claims it isn't his baby , he pulled out and that it's probably another guys ... Janurary 27 I Tested positive for std's he claimed to me the last girl he had sex with was in octuber , deep down I tried to believe it & i let it slide . . . Please I just need someone to talk to about this , It seems like I can only express what's happening here in glow . . From experience can someone help me or any advice would be greatful .