what do I do

I was in a 7 year relationship with my high school sweetheart that turned in to him cheating  constantly physical and mental abuse, surrounded by immaturity and him being in about of jail, he swore he changed( over the phone while he's in jail) but I finally got the nerve to leave... I've been seeing someone new the last few months me and the new guy have been using condoms mostly but sometimes withdraw when things have moved quick ... my period is 9 days late .... I've had an abortion before and don't want to do that again... I'm at a point in my life where I wouldnt mind children but as I was about to tell the new guy what was going on I found out he is in a long term relationship himself.... I really want to have my baby but I don't want to start unnecessary drama on either end... the fact that he cheated , and the fact that my ex will be so hurt and after it all I still love him.... *sigh* what do I do