CD15 now and another negative digital opk and cheapie. Tested today and yesterday. Period tracker says I ov on CD17 and ff says CD16... Would opks be positive if i was to ovulaye in the next couple of days? Also I had two sharp pains lower roght where i guess my ovaries are... The pain was only for a couple of seconds. My boobs feel different, not painful when I squeeze them like af but achey when I walk... It's weird! Any feedback?