Positive and negative (same urine)

Maira • TTC started June 2016! I`m 27, BFP 9dpo (June 20th)... Baby boy due 28th February 2017. BORN MARCH 11th 2017! ADAM ❤️❤️ Pregnant with baby #2 7 years later! Was not TTC. Due August 9th 2024 with a girl
Did this ever happened to anyone here? Im so confused. I always see people confirming with the digital if the lines are even fainter than that! Im 9dpo today. The digital test was out of the package for about 3 weeks. Could that be a problem? Appreciate any help. Going crazy here!!!