Call it a sign or bad luck maybe?

I've been on a hunt for ovulation test for a week I've been to 10 stores all sold out of the ones I want, I heard good stuff about the cheap ones so I've been looking everywhere, I did try the expensive digital but they never gave me anything but flashing smiles since day one of using them. I'm at the point now that maybe it's a sign that I shouldn't get them and it's a waste of time or part of me feels like I'm just having shitty luck. I've been to two counties all different stores and nothing I'm at a loss. I keep crying in the car because I dont understand how all 10 could be sold out. I feel like I'm going crazy.