This begs one basic question: have you made an appt. at Planned Parenthood or with your doctor to confirm what you suspect is a pregnancy??? If not, that seems, to me, anyhow, a LOGICAL first step. You need to know if or if not you are dealing with a pregnancy before possible decisions regarding what to do about it pop into your head.
I won't even TRY to talk about which way you might go; you know what you can or cannot do but I do suggest some form of counseling IF you do turn out to be pregnant.
You are certainly NOT the first woman to find herself in this position, and you won't be the last. Right now, you are operating on assumption, not fact. When you get the facts, IF you are NOT about to consider abortion, then perhaps a crisis pregnancy center would be your next stop. I am NOT advocating FOR or AGAINST termination; that obviously is up to you. But between Planned Parenthood or a Crisis Pregnancy Center, you can receive some very good counseling, support and help with your decision process and any aftercare you might need.
Emotionally, you have work to do, also. The breakup of your relationship hit you hard. I feel for you; if you are having difficulties with this, counseling may help you there, too. It sometimes helps just to go once or twice, air it out and get another perspective. You can do this with friends, too, but objectivity is sometimes lost when you do.
I am so sorry for the fix you *may* be in..... and all the feelings you are having. I wish you the best, whatever happens, and I mean it. No judgement here, just well wishes and hopes you can work things out for yourself. HANG IN THERE and GET THAT PREGNANCY TEST----you may be LATE due to STRESS, not pregnancy!
GREAT BIG HUGS!!! If you feel inclined, please let us know how you are doing, whatever happens next.