My EX Girlfriend is obsessed with me?

My EX Girlfriend and i broke up months ago but she won't let it go. She keeps calling me texting and ting me telling me how much she loves and cares about me. I broke up with her because she is a attention and has to have all the attention and spotlight on her and i couldn't take it anymore. She would flirt with other guys right in me. We had amazing though so she made up for it. She told me we are meant to be and that she would kill herself if we don't get back together. She told me she would do anything to be with me again and she told me she meant anything. She told me yesterday she was pregnant.with my baby. I highly doubt this is my baby but I'm seriously considering getting back together with her i just don't know if i can take her drama queen attention seeking antics. What should i do?