Pregnancy test

Kenyetta • 28 years young married for 10 months 2 wonderful kids ages 11 & 5 and i have an angel baby named jireh ttc bby #4
Do u ladies prefer pink dye over blue dye when taking a pregnancy test or it doesn't matter just asking cause every time I use blue dye it says not pregnant BTW I have 2 children me and dh are trying for our third