Could he be infertile?

Hi everyone I just wanted some other opinions on this subject. Me and my boyfriend have been together for about 8 months now and living together about 6 months. We have not been doing anything to prevent pregnancy and he does not use condoms. I worry it may be him some where he is in pest control and works with really crazy chemicals. I got my period again this month and I just don't know if it's too soon to assume one of us cannot or maybe he has low sperm count? Any thoughts or suggestions would be greatly appreciated. I just am ready for motherhood and Just broke down after he left for work. I'm scared we won't have the family we both want..