I barely 9 weeks & I want my baby already. I'm so tired of being pregnant. I'm not even showing yet…

I barely 9 weeks & I want my baby already.

I'm so tired of being pregnant. I'm not even showing yet & I feel like a fat cow. I feel like I'm running out of breath over anything now. I need to start exercising, anyone know of any safe exercises I can try? I walk my dogs for almost 2 miles everyday.