Thoughts about BBT - long

I am not new to temping. I got of 3 times charting. The first of had some medical intervention. Then the other two where easy peasy. I even did a modified chart between of to prevent. I tryied temping a few months ago, but my sleep patterns are so terrible. I am up at 430AM M-F with my high schooler. Followed by a nap from 540-610 to get my middle schooler and 5th grade up and on the bus. Then I am a very busy WAHM with my daily housework and my jobs. I tend to fall a sleep around 930pm-12AM on the couch (poor hubby) we will wake me to go to bed. Then I start again at 430. When we bb that is really hard. I might not get to sleep until 2 or 3 and then my day starts at 430. Weekends I sleep until 730ish. I am going to try my first opk for the first time ever. I am pretty regular just not sure I am drop an egg or not. TIA for any thoughts.