I recommend clear blue easy digitals. I love them. So easy to read...cute smiley! Never had a bad one!
This. Kind of expensive - but worth it. Just make sure to start testing when they recommend (maybe use the cheaper strips for other days). I started early this month and ended up having to buy two packs.
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I'm using Walgreens which are slow but seem to work fine - but I think I might invest in cheaper ones next month since I'm new to the OPKs and a little test happy so that kinda hurts the budget.
Re: Best OPK brand
This. Kind of expensive - but worth it. Just make sure to start testing when they recommend (maybe use the cheaper strips for other days). I started early this month and ended up having to buy two packs.