Really need advice plz!

Last week I went to er as I had light brown bleeding I am 7.5 wells pregnant they done a scan and said all was the size it should be then at work last night I had dark red spotting not a lot of blood bit it did give me a fright this morning im passing a light brown discharge I rang my Gynae ward and they are happy for me to wait until Monday to get my scan I am in no pain have any of u ladies out there experienced this I would love to know as it would put my mind at ease