Again, I am not one to say to spend alot of money needlessly. Since you admit to being a newbie to cattle, and your comment that your dad is a great farmer but not a cowboy, then you need a little help and guidance. SO, you really ought to get a vet out. Go over the cows with you. Tell you their general age, see if they really are pregnant. If they are not terribly old, just needing some feeding and hay to get their body condition up, then you might have a good deal as TrueGrit says. I definitely do not suggest bred heifers for someone who is not real experienced. Bred cows that have done it before are a much safer way to go. You need some experience with calving and cows are a little better learning curve than heifers. These could be a good deal for you but you really need to know exactly where they stand. The price was good, but if they are old, or are not confirmed pregnant, then you will be better off putting some weight on them and calving the bred ones out and selling the open ones. Without a vet palpating them, or a blood test, there is no way to be sure they are bred.
In my opinion, right now free choice hay, preferably just a good grass hay would do them a world of good. Maybe a square bale or 2 of alfalfa for extra protein but not too much or you could cause other problems with them getting too much rich feed when their systems are not used to it. I mean as much grass hay as they can/will eat. They need to get filled up and get their gut tract in good working order and in a month they will look way different and start to put on weight. But there is no reason to keep feeding them if any are not pregnant.
