What will happen if DCF has to come to your house to check on your child?

I had a baby a few days ago and I guess my baby had withdrawal cuz she was shaking when she was born, so the hospital I guess suspected that I was using drugs while I was pregnant (which i wasnt) I simply said that it might have been becasuse I'm guilty for drinking lots of sode while pregnant. well now the dumba$$ hospital called DCF on me and a social worker has to come to my house to check out the babys living conditions. They claim they just wanna see where the baby sleeps and stuff like that, but are they gonna try and drug test me and all that crazyness? can they check your urine in your home or take a sample with them? I dont know why they have to go through this with me. I feel like sueing the hospital, im very upset and insulted right now.