Sperm Mobility Low

Patient: I recently gave a sperm sample and I was told in return that my sperm count was not high but not low yet (about 2.5million), but my sperm were not moving properly (only 9%). My partner has already had a child in a past relationship, and has been tested and has a been told she has if capable of a pregnancy. Would IUI be an option for us to conceive?

Doctor: