Extreme extreme extreme fatigue

April
I am 35 and roughly 7 weeks with my rainbow baby. I already have children, but my last full term pregnancy was at 28. This pregnancy is ROUGH. I have had fatigue before, but never ever ever like this. My arms and legs feel like they weigh tons, I can't sleep enough, I can't stand up long enough to cook. I called my ob and he said double my prenatals and rest. Anyone else dealing with this? Anyone have any tips? Napping isn't good enough. I sleep full at night wake up get the kids to school and sleep again til the afternoon.... And could sleep again right now!