This patient support community is for discussions relating to relationships, abstinence, arousal problems, birth control, cohabitation, commitment, communication, couples counseling, desire, sexual technique, and sexually transmitted diseases (STDs).
This girl sounds a little "off"! She broke your windshield? Not good! It IS possible to get pregnant while using forms of birth control, it happened to me. I had my tubes tied and got pregnant again. I found out I was preggers when my daughter was only 3 months old and my two youngest kids are one year and 18 days apart. So, it's definitely possible, BUT it sounds as if this girl is using the pregnancy excuse to pull you back into her life. I doubt she is, but of course there is no way for any of us to tell you. That is something you will have to find out on your own.
I wish you all the luck!