I'm 4 weeks + 3 days so very early on. Had some light bleeding this morning and low back pain. I had suspicions something wasn't right as when I did my test a few days ago the line was quite faint and in previous (successful) pregnancies I've always had a blazing line on the day my period is due. My question is, do I just wait and see? Call EPU? They can't do anything so seems a waste of everyone's time.