Opk and bbt confusion help me plzzzz.....?

hi this is my very 1st cycle of opk's. So my cycle last month was 40 days so i started testin on CD13 and it was a faint line and temp was 36.2 then i did the next day faint in the mornin around 11am then positive same color as the test band at 3pm and then again faint at 10pm is this possible to go surge from faint to positive to faint in just 1 day???? and also my temp was 36.5 that day n today its almost gone n temp is 36.4. Now according to temps i ovaluted on CD13 when i had faint line but i got positive on CD 14?? how?? also im supoose to ovaluted 36 hr after positive isnt it??? wot do u think i hav ovaluted or still in the process??? Thanks