Where is my surge???🤦🏾‍♀️

Ophelia • 26 and married to my high school sweetheart 02/14/2011💕 2 boys and 1 angel 👼 06/13/2019 and a daughter

Got my BFP OPK last cycle on cycle day 17. I’m in cycle day 20 this month and still no surge 😔 I’m starting to get disappointed. I’ve gone through half a bottle of Preseed and that stuff is $20 a pop ughhh🙄