I'm learning so many things you'd think I would've known after 4 1/2 years! I didn't realise he had to have 'regular usage' - it's not months, but we frequently go up to a couple of weeks with nothing, because I bleed a lot. Not lots of bleeding, but enough to stop any action. He used to be a 3 day guy, but I've broken him of that, which is probably not something to be proud of. We make the effort when I feel like I'm ovulating, but we've never actually been tested to see if I'm releasing an egg or just feeling like I am.