It let you get close because it was eating, and yes, they will have pups now and they will be getting out and about now too with a parent. If you want to get more photos of them, take along a caller, either someone who uses mouth calls or an electronic caller, a coyote will never pass up a meal. They can pinpoint, with unbelievable accuracy, exactly where the call came from and will come in to investigate it, keep that in mind. The caller should be a distance away from you because when they coyote comes in, it will be focused on the caller location, not your location. You should set up with the wind in your favor so it doesn't scent you when approaching and you should set up to funnel it's approach.
Their senses are very keen and they will bust you more times than you can count and you may never see them even though they did come into the call but it can be sooooo much fun.
They are harder to hunt than deer but much faster, you call in a spot for 15-20 minutes, if you don't see anything, move location by about 300 yards and try again.
You will also call in Red and Gray Foxes so you'll have an opportunity to get photos of them too.
I used to hunt them years ago but can't anymore so I will just shoot them with a camera now.
If you want more tips, PM me, I'll be happy to share anything I can.