I not had normal periods since I was 16 and had the Depo shot. I stopped that only 6 months after getting it. That was well a long time ago. To this day, I have irregular periods. I can go literally 8 months without one and then it comes. I've been checking super often (at least once - sometimes twice- daily). I have never gotten the "smiley" on my ovulation tests. Is this normal to never show a positive? I have 2 kids so I know I can get pregnant.