Need help ladies

Victoria

So today I am two weeks late for Af.

I took a test at 1 week late, said negative (clear blue)

took one today which I thought was a positive two lines! (First response) it was faint but a clear strong control line

However I tested later again because I couldn’t believe it and it was negative :(

Can you have a false positive???

I’m so confused 🤷🏻‍♀️

Any advice would be great 💗