Espence  5 years ago

Opk do have different sensitivities. If I use pregmate I get 3-4 days of blazing postive. If I use one step I get just one positive usually, if I catch it.

landmarkdwr   5 years ago

All other opk are negative. Does first response pick up estrogen too?

VanessaJoo  5 years ago

Maybe its still picking up higher levels of estrogen with LH?