lol I think EVERY new chick mom checks on the babies much more then is actually needed. I have my three in a brooder in my bedroom, right next to my head. I can deal with dust and the noise, rather have that then have something happen when I wasn't around. Plus, the heat light is another added worry, so I like to keep a constant eye on it.
My chicks were two weeks old before I finally left the house empty to run errands, and was glad to come home to happy chicks. The worst thing I have encountered with mine is they tend to dig near the feeder till it tips over and spills everywhere, that is about 11pm at night. They get a hair up their butt or something lol. Thank GOSH they haven't tipped their waterer.
I also brought them outside when it was 70's for a few hours as early as possible. Afterall, they would be outside with the momma hen, and I know hens do not sit on chicks 24/7. They get up, eat, drink, and the chicks are exposed to the heat/cold for however long. My chicks go in a draft free dog crate/coop when they are outside because I do have two outdoor cats who I don't trust until the chicks are grown.
All in all, enjoy them
the nervous mommy feeling will subside SOMEWHAT lol! Congrats too!
Edit To Say: I bought chick grit at the feed store, and offered it when my three were about 2 weeks old. Along with some rolled oats (their FAVORITE treat) and some "chick scratch" which is just chicken scratch ground a bit finer. They are VERY fond of the oatmeal though, dry only, they won't touch cooked. Picky picky.