Almost 5 weeks later and Bleeding (TMI)

Abbie
Hi Guys,
I am almost 5 weeks pregnant and yesterday I started bleeding. (TMI ahead) It started off as brown in the morning and progressed to red through the day, I'm now on my second day of bleeding and it is still red. I went to the doctor yesterday and they said there is nothing they can do and I just have to ride it out and take another pregnancy test in 2 weeks. I'm so confused as I have not passed any clots and my cervix is closed.
Has anybody experienced this before? 
Thank you in advance.