Trying to get pregnant.. need help?

Hi, im trying to get pregnant and I was wondering what can boost my husbands sperm count? He is a smoker and I read the reduces it. I was also wondering what can increase my fertility as well. What can help this process as well. We been putting a pillow under neath my pelvis too. He has been taking multivitamin called performance and i been taking walgreens prenatals. what else can we do?