As the title says really. I'm certain I o'ed on NYE cd17 had the positive opk, pains, ewcm etc but fast forward to yesterday and today and all opks have been positive. I'm really not sure what is going on.

Porobably one if two things is happening. 1) its very possible you are pregnant. Opks can detect hcg hormone and a lot off times show a positive for pregnant women. 2) Your body was gearing up to ovulate on NYE but didn't actually ovulate for some reason and you are gearing up again to ovulate.