Pee test and blood work

Faith • Hi I`m Faith, I`m 23. Hubby and I have been married for 4 years and had our first baby 6/2/16
So i don't currently have a doctor (i moved and might be changing insurance soon), but if i get a positive result from an at home test (fingers crossed) do i just go to a walk-in to have a pee test and/or bloodwork or how would that work?