My little bean needs to hang in there

Deb
Started pink spotting yesterday. Today slightly redder. Some cramping but not bad. Had a scan today she's told me to be hopeful. No obvious sign of where bleeding coming from. She said it could just be baby settling in the uterus or my cervix a little vascular. Scan showed my sac 5 weeks 4 days which is right for my dates. Sack looks regular. Yolk sac visible but no embryo. She said she is not shocked as it's usually over 6 weeks when it's seen. Need a scan next Tuesday to confirm viable pregnancy. I've had a miscarriage before but only had one loss of blood but bright red with pain on right side. Anyone had this and had a successful pregnancy. My last pregnancy I had spotting but just pink and he was fine. Just more worried with it being more red. Still have pregnancy symptoms. They don't do beta in uk. Just scans