advice on how to care for six ferals

Hello! I am looking for some help on how to care for the 6 ferals outisde my house. Last year I had 2 females, I would leave them water and sometimes food. Now they have had babies! One had only 1 baby. The other had 4, but 1 died at 3 weeks. Now they are getting bigger and more hungry everyday. In my country (Saudi Arabia) they dont spay or neuter. I want to help these poor cats, but I cant afford or handle anymore babies and cats.  Also, one of the babies, about 4 months, wont eat! I need any advice before I make the situation any worse! 

Thankyou for the reply!! I knew that I should probably stop feeding them, I just needed to hear it from someone else. One of the older ferals is really sick now. He's about 4 months and hasnt eatten for 5 days. He is still moving aruond, but not much. He is also drinking some water. I noticed yesterday that the side of he face is swollen and for a couple of days hes been smelling bad. I think he is dying and its killing me to watch it. He is my favorite and I had him socialized. He wanted to come in my house all the time and would let us pet him. I cant trap the others. Any advice on how to get them off my property would help. I cant sit and watch them all die one by one.

The sick one is doing better today!!!!!! I put warm compress on his face yesterday and i think it helped. He doesnt smell so bad today and his face isnt swollen either. I also washed his face with saline solution. I still cant get him to eat on his own. Since last night I have been using a medicine dropper and trying to give him wet food mixed with water. He didnt like it but I got lots of it in his mouth. Today he has been walking around following his mother and meowing regular.

 I just wanted to thank everyone for responding with great advice. I'm still not sure on what to do with the strays or ferals outside, just going to wean them off the feedings and hope they can make it on their own. The one sick baby is soooo much better today! When I woke up to check on him he got up and ran to me looking for food and ate on his own right away!

 When I moved to my house about 2 years ago I found the 2 females with their mom. The mom eventually left them. I would put food maybe once or twice a week and water all the time. One of the females was really sweet and after 6 months or so she would let me pet her. The other would not let me get near her without hissing. The sweet one I named mustache' cuz she got into something and had a mustach for awhile, the other is Max, cuz we thought it was a boy. Mustache' had one baby, Gizmo at my front door. I would feed her everyday, just so she could stay with the baby. Then once Gizmo could walk she moved him and i couldnt find them. About a week later her sister, Max had four babies. I fed her also so she would stay with them.  The babies had problems with opening their eyes and they would keep crusting shut. So when I would feed the mom, I would take one baby at a time and clean their eyes with ACV or homemade saline soultion. Once they could walk she moved them and one died:( They were all healthy until Gizmo got sick. He just wouldnt eat for a couple of days and then his face was swollen. I really thought he was going to die and was preparing for it. I made a nice box with soft blanket inside and he would just sleep all day and night, drinking a little water. I kept checking him to see if he died yet, but he kept on surviving. I tried giving him food with medicine dropper and I really think it saved his life!!!!!!  I think he is going to be my boy outside. He is too sweet and lovable. I love him too much especially since he came back from the brink of death. Thanks again to everyone who helped me. I will always come back to "TheCatSite."

Well Gizmo is doing great now! He's running around and getting fatter! One of the other babies died yesterday. I dont know what happened to it. I noticed he was lying around alot and would even let me pick him up and hold him, which he never did before. I started to watch him and saw he wasnt eatting anymore and he loved to eat and would fight the other cats over the food. I started to give him food with the medicine dropper. He just got sick really fast! I even tried to make him emergency kitten formula (evap milk, gelatine, yogurt,and mayo) I noticed he was shivering, then his body was twitching in all over. He got to weak and kept trying to hide. When I found him again he was already dead. I dont know if was bacterical infection or poisioning. Any ideas on what could kill a kitten so fast. He was still small and about 3 to 4 months old. He was fine a week ago when I was taking care of Gizmo and now he is dead. Thanks you sooo much for all your help!!! ;)