Extreme exhaustion

I am only 6 weeks pregnant and up to this week everything has been great. In the last week my best friends mother died (I had to make a 300 miles journey in 24 hours to see her and ensure she was ok), served in a jury on court for two days, take temporary custody of my two nephews aged 8-10 and work two jobs one of which requires a 3 hour commute. On top of this I have the usual mundane house chores to attend to also. If that isn't bad enough morning or more evening sickness has started to kick in. Maybe just a bad week but any advise on how to get more energy. Just feel like I am going to crash and burn and worst of all you can't even tell anyone. Oh and I have an 8 month old puppy in season