Newly pregnant and 0 motivation

Hi, I am 7 weeks pregnant and exhaustion is totally taking over my body. I was a very go go kinda person but now all I want to do is nap and stay in bed. Before if my husband took me somewhere as a surprise, I’d be elated. But now I dread getting dressed and stepping out. Where I live, it’s also really cold and the weather makes me want to stay bundled in, aka stay in bed. It’s already taking a toll on my mental health and I don’t want to spend my entire pregnancy like this. I work from home for which I’m grateful cause it provides flexibility in my daily schedule but also makes me stay indoors all the time. I’m very happy about starting my family with my husband but I am already missing the old me which makes me sound not grateful and I hate that cause I know deep down this is a blessing. How do I get out of this rut 😢