Doe in prcess of abortion

I need some advice, we have a young doe I'm guessing 3 months pregnant, this morning I went out to trim hooves and noticed she has passed a placenta sack, but it is still hanging. She probably weighs a 75 lbs. I was given some Oxytocin. My question is should I give her a Oxytocin shot and how much and should I give her a Pen G shot also and how much or should I wait and see if she can pass it. Thanks

 

Thanks, I'll keep an eye on her every couple of hours.

 

Thanks for you thoughts. I do not see any improvement since Saturday, the sack is still hanging. I gave her 25ml of power punch just for a little boost, she is eating and drinking, gets up and moves about a little bit then lays back down. I did notice her ankles are a little swollen. I haven't taken her temp, she feels cool to the touch. So you all think I should still wait some, she has been 24+ hours in this situation.
I did have an older doe last spring that had twins, didn't pass the sack and a week later passed a mummified kid. Talk about a surprise, the only thing I gave her was a PenG shot..

 

I looked around the pen and didn't find anything. The sack Saturday morning had fluid and was about the size of a hardball. It got punctured and drained out, now its a solid ball hanging and beginning the smell bad. I will have to call the vet Monday, he dosen't answer the phone on Sundays.
I'll get a pic, but posting it will be the hard part. lol!

 

Since my last post, my doe passed away Sunday night. She definately had a kid blockage. When I found her Monday morning there was one large hoof and one small hoof that started to come out. It was my hesitance to go in and check things out that may have cost her life, I can't say for sure but had I acted she may still be alive.
I didn't see any sack around the feet so I am assuming the babies were already dead since she had been in labor for such a long time. I'm am vowing today to learn what to do so this will never happen to another of my does as long as I can help it. Thank you all for your help and thoughts they are taken deeply.

Now for the good news God blessed us anyway yesterday with the birth of a set of trips :kidred: :kidblue: :kidblue: and single :kidred: