Is It Normal To Have Light Bleeding And Mild Cramping Four Weeks After A Medical Abortion?

Today is October 10th 2018, I am 25 years old, female. I underwent a medical abortion at 5 wks & 0 days on September 14th 2018. I took the medication as prescribed and had the normal side effects of light bleeding and cramping. But I am still having the light bleeding, I do have some cramping and lower back pain. I am seeing a chiropractor in the next 12 hours as I have a believed pinched nerve in my lower back. I have been staying hydrated very religiously and eating healthy. I also started taking my birth control pills on September 16th 2018 as prescribed. I was told that bleeding may be experienced up to 4-8 weeks following the medical abortion, just would like to check that this is normal. I do have some cramping that is minimal and inconsistent.