My boer doe kidded today, two girls, very quickly. Soon the afterbirth came, a large portion broke loose, but she still has some coming out and hanging down in a long thin string. It's been two hours now and seems to be stretching almost to the ground. She is in happy spirits. Nursing her kids, eating, drinking, and resting. She has been given calcium and nutra drench soon after giving birth. I'm at a loss worrying about this. She is not pushing. I tried to bump her but didn't feel anything, please help.