I'm so aggravated

Ashy • I have two amazing boys, born 05-30-2015 and 04-07-2017 and we are going to have another baby in December 2018😍😋
I took 2 of the same kind or opk tests today because one fucked up so I carefully did another and they both screwed up!! So wtf? Ugh then I took a pregnancy test I bought for later and it messed up too!!!! Same brand! But I just tried an opk of that type yesterday!!