I feel like when I looked into this a few years ago the technology just wasn't there yet, but curious if anyone has used a cycle tracking device lately, and whether it worked?

I'm still breastfeeding my toddler and my period only recently returned, so things have been a bit wonky. I don't feel like taking an OPK every single day for who knows how long, as I don't have a lot of hopes for getting pregnant while breastfeeding anyway (though I would be super delighted if it happened). Mostly it drives me crazy to have no idea what's going on with my cycle, because of course then I need to take a HPT just in case, then it's negative, and so on...