Yes,galaxy,there is a great chance you are pregnant.Even worse,you cannot tell who the father may be.I do not mean to preach,but, you need to change your ways before you get something far worse than an unexpected pregnancy.Sounds like you have a substance problem as well.Please,do yourself a favor and have all the appropriate tests done.If you are pregnant,get clean before you harm the baby.If you are not,get clean anyway,drugs will not do you any favors.I am telling you this from experience.It sounds like you need to work out some esteem issues,your behavior is crying out for help.Please,be kind to yourself and stop this behavior before you harm yourself anymore.Best of luck to you.Patty