Very scared!!!

I had my first apt yesterday.. when I got my pap my ob said I had old blood yesterday after the apt I wiped and there was pink only once again today when I just wiped there was pink... they cant get me in for an ultrasound until tue she is a little worried bcuz I had a confirmed chemical pregnancy in December... she said my uterus is small and is measuring about 6/7wks... going by my lmp I should be 7wks1day....