Is this even possible?

Coral

Is it possible to get 5 false positive pregnancy tests? I’ve taken 5 pregnancy tests in 1 week. The first was a pink dye and the other 4 were blue dye but all with positive results. HOWEVER, this mornings that I took is VERY faint compared to last nights and the 3 before that. But is it possible for all these tests to give me a false positive or does that seem impossible? They were Acutest and Numark.