OPK experienced...... HELP A CLUELESS GIRL OUT 😆

Okay for whatever reason getting pregnant just isn’t happening for us Taking a laid back approach this go around.

I track my cycles and they are like clockwork but we haven’t been using opk so this next month I’m going to add that and see what happens. However I know nothing of this. 😬

My questions are .....

what brand is best??

Do I want smile faces or lines??

Does a peak ovulation test mean that you’re ovulating that day or that ovulation comes the next day?? Just wanting the info from the experienced so I dont waste money or time and miss our peak days.