Help 😢

So my last period was on the 17th July 2019, since getting my period I have never missed one so this was odd. We were getting faint lines about 3 days late from AF, sure enough they send me to the lab for bloods... Three days later I get a call saying yes its confirmed you are pregnant, congratulations.

That night, I started to bleed. Not at all heavy and only when I wiped but because of previous miscarriages I went to my GP to check if everything was alright. They took more bloods and pulled me into their office, I had been given wrong results and I was in fact not pregnant as my levels were only at 2.

I still haven't had a period and I am still getting faint lines on my urine tests, has this ever happened to anyone else and you've ended up finding out you're pregnant?