Sceptical...

So I'm thinking it's not likely that I'm pregnant but I'd like to maybe pick up a dollar store test today anyways. We've only had sex 3 times in the last 3 weeks because I had a super painful ovulation and a big cysts plus we've been super busy and tired. We did had sex during my fertile window though, so who knows, right?! So what's the best test... Pink or blue dye?