I am completely amazed at how different I feel for this pregnancy... I am 14 weeks along and I am exhausted!!! I've never felt so tired in my life! I feel like I cant do anything

my first pregnancy was alot different, little bit of nausea and a bit of fatigue here and there but this baby has me feeling like a ran a marathon or something.... Sometimes I drink a little bit of coffee but I mostly try and stay away... anyone have any safe ways to get energy?
Re: 2nd pregnancy, so different from first!
Yes, my 2nd pregnancy is way worst than the first. I think a lot of it is that I'm having to take care of a toddler while pregnant, and I just don't have the "me" time to rest, relax, and exercise like I used to. I'm also much more nauseous. Everyone convinced me I was having a girl this time because my pregnancy is so different - nope, it's another boy.
I have just been going to bed as early as I can to get in as much sleep as possible. I have a hard time making time to exercise beyond taking walks, but I find that when I do get to the gym, I have more energy the rest of the day. Even taking walks and light exercise like that helps a little.
I have iced black tea in the morning and sometimes a soda/green tea in the afternoon for a boost. But caffeine doesn't give me energy all day long.