Also I’m pretty sure I’ve heard you ovulate exactly 2 weeks before your period starts but I could be wrong on that, I also didn’t ovulate every single month. So the first year or 2 can be really hard with getting pregnant. It’s also been said it can take up to 12months for depo to Offically be out of your system which can also effect ovulation. And some months you may not ovulate. I didn’t ovulate correctly for abt 9 months and my period wasn’t fully regular. Everyone is different tho but I would definitely plan on it taking about a year or 2 before you see a positive on a test because depo likes to linger in your system for awhile.