Positive then negative tests. Help!!!!

[Bbean27]

I tested positive on Friday afternoon using a clearblue weeks indicator. It came up saying positive 1-2 weeks. I am 5 days late on my period and usually like clockwork.
Today I have tested again in the afternoon and got a negative. I have done a further 4 tests using the same brand and also 2 different brands and all are negative.
Im awarw this could be a chemical but thought id still have some pregnancy hormones as it’s only 48 hours later.
can anyone give any advice please? Has anyone else had this?

Did you use the follow up tests during the day? If not I would suggest waiting until the morning to try again, as the hormone detected in your urine is at its strongest in the morning. Dont drink any fluids before you take it also, good luck x