i was on the 3 month injection but still having my menstrol.. I woke up one morning feeling very unusual and nauseas? about 3 weeks prior i had my menstrol, but when i woke up that unusual morning i decided to take a home pregnancy test! and it came out Positive. when i went to visit the clinic and had a scan done they told me unexpected news, I was 6 weeks Pregnant! How is this POSSIBLE????