Miscarried 3 weeks ago then..

[SleepyBaby]

i got a positive clearblue this morning that turned negitive again 10-15 minutes later, followed by a faint positive on a FRER, is this even possible?

I had tested until the lines went negitive, id 5 negitives before i gave up testing then found a clearblue hiding this morning and took it, ive had symptoms that id put down to being paranoid but could it be real?

3 weeks from miscarriage to faint positives? im lost