YES, that is 100% normal.
Surgical abortions really do not cause that much bleeding, medical abortions will cause the most bleeding.(abortion by pill)
I have had 3 abortions, and I rarely bled after each of them.
You will notice that as you increase your exercise, you do heavy lifting, or other activity, that your bleeding may increase. This is normal, and it is due to the movement and slight stress on the uterus.