Testing in MO

Had my first child in KCMO in 2012 and as far as I know, I wasn't tested. I quit smoking around 20 weeks or so and only smoked about once a week once I knew I was pregnant. Currently pregnant with my 2nd child in Springfield, MO and again, as far as I know still haven't been tested. Plan to stop at 20 weeks again. Next appt is soon so I will update if anything changes with my situation.