Feeling so doubtful.

I've been bleeding with minor cramping for the past two days- it goes from bloody mucus, to spotting, to stringy bits.. but the ultrasounds/blood tests show baby is ok. I'm 8 weeks along and this just doesn't feel normal. I've been to emerg, ob, ultrasound tech, nobody has any answers. I'm trying to stay hopeful but seeing blood everytime you wipe isn't very encouraging😞 Hang in there babes.