Afraid to know the truth

I am 20 year old woman. I broke up with my ex about 3 weeks ago after finding out that he was cheating on me with 4 other women. Last we had sex was 2 days before I left. Now I am scared that I might be pregnant and where I am currently located there isn't any shops to go by a pregnancy test. I don't nth to do with my ex. If I am pregnant a huge part of me don't him to know because I don't want my child knowing what kind of person its father is but most of all I am terrified that he will reject the baby. I haven't seen him since kicked him out of my house with the woman who was there. She didn't know about me and was respectable enough to talk to me and apologize for coming in between us. Me and her are friends now and she also stop talking to my ex too. Anyways I have 3 more days before I can find out. It is bad that I feel ashamed my ex got me pregnant if I am? I have cut all my tides to him and his family. What do I do?