Could this be a positive? Cycle day 14

Megan

I posted on here a few days ago and it’s the first month using OPK. Top photo is from Saturday around noon and bottom photo is from this morning.. the app predicts ovulation for Wednesday.. and I woke up this morning very crampy on my lower left side. Is the app pretty accurate? Last month I think I ovulated later than what the app predicted. Should we BD today?? Sorry it’s so long. Just trying to get the hang of it lol it’s crazy sometimes😰 thanks for any advice!