Supplements for Hubby to improve sperm

Cassie
Hello all!! We got my husband SA back and the results weren't good at all. He had low count (16.1), low motility (28), and low morphology (2). So according to the notes on the SA, it says low chance of pregnancy. What can we do to help him? We're seeing a fertility doctor in a couple of weeks but wanted to know what worked for you ladies!!