Before I had DS, when I was on the pill, I never had a single pg scare, never occurred to me I could be pg, and when I was sick, I always would think oh no, the flu, or oh no food poisoning (had that once, worse than the flu!). Anyway, now that I'm charting, I think I'm pg pretty much every month! Mostly because when I did get pregnant, it felt pretty much the same as the arrival of my period for the first week! I assumed then that I was just having some nasty PMS. Now, of course, nasty PMS always makes me think I'm pg! I think now that the worrying you're pg is probably the norm, and the blissful ignorance I was in when I was on the pill is the abnormal state of mind!