How long does a LH surge last? Had a positive opk last night (8:30pm) and just took one and it's positive as well (11am).

Question

Answer

It depends on the person. You just go by the first positive and don't need to keep testing anymore u til next cycle.

Answer

It can last for a while depending on the person. Mine usually last 18 hours. As such, it’s recommended to go by the first positive.

Let's Glow!