Hi Jess,
I too have a friend who has been trying for a baby for over a year & understanding as I go through the emotions with her how hard it is. They say, you can never have a positive then a negative... But you can have a negative then a positive (which is what I had)!
I done a Clear Blue to start which was negative, then done 2 positive home brand tests. I then done another Clear Blue a few days later & then that was also poitive. There is still hope!
The bleeding could either be the egg 'implantation' or a miscarry (which I have my fingers crossed for you it's not). The only thing would be to get down the doctors & get the answers you need.
Bestest of luck x