Exhausted

I am almost six weeks according to my LMP, and my exhaustion is starting to kick in. With my first daughter I worked full time and would come home, eat dinner and pass out for the night. This time around, I work part time running my own cleaning business, but I get exhausted from about 4p-7/8p... And then I cannot go to sleep.. I am wide awake until 1-2am and then am just tired from no sleep in the morning.