I can 100% relate, my FIL is very ill, he had triple bypass surgery a week ago and we are all burning at all ends right now taking turns being at the hospital and helping my disabled MIL who is home alone and not able to care for herself. The whole family is worried as his stay in the hospital keeps getting extended. So it has been a lot of later nights, early mornings and busy nights.
My daycare families are beyond wonderful, they have been bringing some homemade snacks knowing how tired I am and how I have been still doing everything I normally do with the kids. As one mom said when she brought her batch of homemade muffins, 'sit and relax at quiet time, no baking for the kids - relax!" I love her.
Forgive yourself and have a lazier day, the kids will love it and it will give you a bit of a break, if that is possible in daycare land! Most people are understanding that we have our own lives and stresses. Hope today is better.