Hmmmm.....that's the problem with OPKs though isn't it, that they tell you when you're about to ovulate, but don't let you know whether you definitely have ovulated, or whether your body nearly popped an egg out, but didn't quite.........However, the CM and ov pains 24 hrs later sounds normal, no? The sticks tell you you're about to pop, and 24 hours later the popping's still in progress, as it were? Certainly, I've had ov pains and EWCM on the day of the temperature rise before (so have definitely ovulated, as far as charting is concerned).
Is that what Google has been telling you? That there's no way to be sure? BUT if you're 12DPO, then something would probably show up on a HPT, wouldn't it? I BET you're going to have POASed by the end of the day- good luck!!!!
I'm really glad to hear that the mental meds are working, btw 
As for Tax Credits- oh, the absolute wankstains. They won't even let you stay on hold now. They make you give ALL your details to a robot automated voice, then simply say "All our advisors are busy. Goodbye". FUCKERS.
. However, I'm just calling them up to ask them to give me less money, as DS has started school, so I've decided to send them a letter setting everything out, and send it recorded delivery. Then if they keep overpaying me for 6 weeks it'll be their bloody fault. Ha! (and breathe....)
Right, I'm leaving the house now for.....my dildocam appointment! (I mean transvaginal ultrasound, obvs, cough cough). Wonder if they'll find anything untoward?