Happyjul,
Take care. Pls minimize ur movement now, stay in bed. If need be, get a wheelchair when u reach the clinic. Is the bleeding Bright red colour? If bright red colour, maybe u need to highlight to the dr or ask whether need to go down sooner.
I was wearing crocs flipflop for my last pregnancy. I think get a good pair of flipflop with good support n friction should be ok.
Qing-er,
Don't worry so much. Normally is abt 6.5 weeks then machine can pick up HB. Jus wait for two more weeks