Help! Stray Cat Story?

So I am looking for advice on my stray cat situation:

I will start from beginning , I was sitting in our office when I kept hearing kitten meowing. So I look over and sure enough there is kittens in my neighboors bushes. So it took me about an hour or so to catch all of them. It was very simple. I took out a can of food, mom came started eating it , kittens followed, I would run up catch 1 or 2 and run back in, sometimes I wouldnt catch any. There were 5 kittens in total, and I have an old cat carrier that I put them in for a few hours. I never saw mom again, she hissed at me and came once more that night, and I tried so hard to chase her down but I cant just run through my all of my neighboors yards. Anyways, so I get back to my back porch with the 5 kittens in the carrier (just in case you were wondering, 3 boys Mario,Luigi,Yoshi and 2 girls Princess Peach and Daisy) and my first thought is are they old enough to eat without thier mom? The canned food answered that question, so that meant they were 4-6 weeks old. Next was, what am I going to do with them?? So I tore up my garage and found an old dog cage, I proceeded to put it up in an extra room I have because the porch would be too cold overnight. So they lived in the cage about 2 weeks or so before I was able to find all of them homes. I did not see the mother and I looked for her just about every other day. I couldn't give them to a non-kill shelor because they were full, but I did call the APL, which meant it would take 2 months for my appointment and I got rid of them before that lol. Then I was cat-free for about 1 day. yes, mom , who I named Betsy, was at my front door. It was a nice day so I had it open, and my cats were going nuts, so I looked and there she was. I fed her but she still hissed and wouldn't let me near her. Fast forward 2 weeks and she has come every day between 7:30-8:30. Now that its summer, I am home more (im a teacher) so I noticed more. Not only has she come, her boyfriends as well, not as often but a big orange cat (named him big john) and a black and white cat that I have only seen once. (I know those are dads because of kitten colors) I have also noticed that my neighboor (who had the kittens in the bushes) has a cat house on her front porch, as well as dry food and water. I have never talked to her before except the day that I moved in. So I saw her on her front porch with the cat reading, betsy still wont let me touch her but is a lot more friendler, anyways we talked about the cat and the kittens and she never admitted to owning betsy but she said the kittens were born in her garage. To even add more drama, betsy is visably pregnant, great! So I want to know what my choices are , how do I go about this?? Like I said Im not close to my neighboor but I do planning on talking her again this weekend to see if she can catch betsy since she basicily lives on her front porch. and I also can not touch or catch her myself. Its too late to abort the kittens but I am sure I can find homes again...