11 days late help!

I'm 11 days late, basically the month is over since we have like 2 days left of it. So I've went the whole month without a period. I've tested and they all say negative so I don't know what to do. I called to make an appointment for the blood test and they said I'll have to take a pee test first before they do the blood test and if I'm getting negatives then what's the point of taking a pee test up there with them? I'm not sure what to do at this point😔