Pregmate bad batch?!

Heather • 👦👦 👼12/27/20 👼 7/24/21 👧🌈 9/17/22

Oh my gosh I’ve been stressing the last few days. Please help 😫. So I have a short 25 day cycle and typically get my peak on CD12 or CD13. Every single test has been super light with barely a change. Glow keeps pushing out my ovu date because these are so negative. So I test today with FMU, still pretty light. Test again early afternoon and same. Barely anything. Well all week I have been using my new batch of pregmate. On a whim I decided to use a leftover from the last batch. SAME urine sample, same time. And I see a big difference right? Bottom picture the test on top is prior batch (but still good) and bottom test is the new ones I’ve been using. Thoughts?!