So… I have a ridiculous amount of cats due to the fact that, well, two females kept making babies (not together obviously, but the way I wrote that looks funny) with some of the stray pimps in the neighborhood. The first cat we got a few years ago was pregnant when we took her in. She was actually really friendly despite being preggo and a stray (I’d still be wary, though) and the other female is actually her daughter. I don’t know if female cats are insane when they’re pregnant, but if they are, I think because she was born here and was with us her entire life, she is comfortable with us. Out of all the litters we’ve had with those two, we saw them all on the same day they were born. They do like to hide when they give birth. One female kept going into the basement to have her babies. Although we took her in, she was still an outdoor cat and came home to eat and sleep, but there were a couple of times when she had babies outside of the house. I think she had one under our neighbor’s deck. She carried each kitten one at a time into the house (cute and funny story, but I won’t go into it), but the other litter died. :/ I don’t know if it’s a lie or not cuz I think my neighbors hate us, but they said that the kittens drowned in their pool. 
There are a few other strays in the neighborhood and I’ve seen them with kittens. The kittens will follow the mom around, so they should be okay. I’ve never seen any cat roadkill here, so the mothers must know to stay out of the road or be careful when crossing and the kittens pick up on it.
Lastly, AWWW @ YOU FOR TAKING CARE OF SOME KITTEHS. <3