Please give opinions!

I already posted this, but only one response so I thought I would try again. I used ovulation tests thru Monday, but ran out and couldn't get to the store Tuesday to get more. On cycle day 18 I had ovulation pain on right side that continued into cycle day 19. Not sure if that happens bedore O or after? This is the first cycle that I have done bbt so was wondering if anyone thinks I ovulated and on what day? Thank you in advance!