I had a complete previa and started spotting at 30 weeks. I called my ob who was happy to wait 4 days till my next appt then booked a scan for me to check everything out. I kept spotting until at 34 weeks I had 2 ante partum hemorrhages and was given a c section to deliver my son. It is very scary! You should talk to your ob and see if your scan can be moved forward at all. I am here if you need to talk. Big hugs Hun xx