Talk to Urologist on Semen Analysis Report

I have been married for 9 years and have been actively trying to conceive. I had 03 natural pregnancies however, no alive child. Had 01 miscarriage at about 6 weeks, one ectopic pregnancy (right tube removed due to it) and last pregnancy ended up in still birth in May 2015. we i would like to know about my husband's semen analysis report. Since there is no option available to attach the report, i am giving details here. Please let me know if its okay report with respect to conception. if not, what can be done to improve sperm quality and count.

Sperm Count: 20 MILL/ML Sperm per ejaculate: 60 MIL Percentile Motile Sperm: 68% Rapid Linear Progression: 20% Slow/Non Lin Progression: 45% Non Progressive: 35%

Doctors detailed answer will be much appreciated. Jazak Allah Khair