I was very lucky and my DH ditched the condoms the weekend AF was due with me last cycle (I even had all the cramping and PMS that weekend!), then I fell pg on the next cycle - something neither of us were expecting!

It's probably worth asking your DH if he's felt any changes in your breasts - my husband notices them, but doesn't say anything to me, so I find out a week after he does that they've grown! LOL, I thought he'd been paying them more attention recently but it wasn't until I measured them at the weekend that I realised I'd gone up another inch. Since falling pg I don't check mine as often as I should - I'd usually do my usual "lump check" just after AF so since I have no AF I'm having no reminders.

I agree there must be something around - in the last few months everyone I've met is either due a baby within a couple of weeks of me or has a family member who's due around then - even one of my work colleagues has a wife who is due the week before me! I know what they've been getting up to... unfortunately, they know what I've been getting up to as well. LOL, at least when you're TTC you can choose to keep something about your sex life a secret.