need a little help πŸ˜ƒπŸ˜ƒπŸ˜ƒ

Rachel β€’ πŸ’–πŸ’–πŸ’–βœ¨βœ¨
Okay so I've been ttc for a few months now and nothing, so this month I've decided to use opks. I'm only on cycle day 7 right now and usually have a 29-30 day cycle. Around when do you use the opks? I don't have a clue when I ovulate I don't feel like I get the signs of ovulation so that doesn't help!