2 positive tests then 3 negative...help appreciated!

[hass90]

Hi all,
I've never posted on anything like this before so bear with me!
On Thursday evening I took a first response test. It had a faint second line. Both my partner and I could see it but weren't sure if it was just a mistake so he went about a clear blue digital test. That came up with 'Pregnant 1-2 weeks'.
However the next day, I took another test and that said not pregnant. I've since taken 2 more that said not pregnant.
My period is due today and I'm yet to start. I also feel quite nauseous.
I know I had sex around the time I was ovulating and on Wednesday I had a tiny spot of blood and a cramp which sounded to me a lot like implantation bleeding.
Does anyone have any advice? I don't know what to think and would really appreciate any help you have!
Thanks :)

[AlwaysNeverOnTime]

This is what happened to me when I had a chemical pregnancy (a very early miscarriage) a few months ago. I had about 4 days of positive tests, but very faint. I knew something wasn't right which is what made me keep taking tests. I then took a digital test which came up pregnant 1-2 but I still didn't leave it and tested the next day which came back not pregnant. A few days later I started bleeding.

Sorry I don't have a more positive story to tell. Why don't you wait a few days and test again then?