Positive test and Miscarriage

Had a missed period on Friday so I waited around to see if AF would arrive but she didn’t don’t ever skip periods nor has it ever been late so I decided to take a test and it came out positive this morning I went to the bathroom started to pee and realized blood when I wiped. Me being as paranoid as I am visited my doctor (not my OB) and he thinks that this can be a missed carriage as ultrasound shows no sac but collection of blood and wants me to visit my OB on Saturday to confirm if blood is still there. Upon leaving the doctor’s office after the ultrasound blood stated flowing heavier. I’m soo depressed and can’t stop crying I’ve been ttc for almost 6 months and thought I finally got thru and to hear this now its depressing