Very confused! PLEASE HELP!

Ai

Friday I got a positive pregnancy test (pictured below)

But now Sunday I'm getting negative tests.. af is due today and there still isn't any sign of her.

I been having quiet a few pregnancy symptoms.. eg nauseous, vomiting, headaches, tiredness, tender boobs and nipples and a lot of cm.. these are all the symptoms I had when I was pregnant with my daughter.

Any ideas on what's going on?? I seriously have no idea 😭