8 weeks and SOOOO tired

Hey. I'm 8 weeks 2 days pregnant with my third child. I've been nauseous and fatigued past 3 weeks. Since yesterday the tiredness has gotten even worse. Had all routine labs done and all normal. I am so tired. I don't even have the energy to really even make lunch. Thank God my older two children are old enough that they like making their own lunch they and my husband have been troopers. I haven't been pregnant in 10 years, I'm my early 30s. Wondering if maybe I've reached the peak of first trimester woes? Anyone else?