I'm in the same boat as you, I'm 7 weeks along and last night when I wiped there was bright red blood and I had cramping pains off and on all night although no more blood. I bled throughout my previous pregnancy but that was brown old stuff.
My midwife has told me to ring in the morning and see if I can change my scan for tomorrow (I have one booked for thursday today is sunday).
I still have period like pains and spent all night crying, I am also concerned because my morning sickness has been less the last 3 days, it went from being really bad to quite mild and for not as long.
All the best for your scan tomorrow, I'll be thinking of you Erin, cheers Missy