My Leg Feels Tired I Am 26 Weeks Pregnant And Experiencing Arm And Leg Weakness. Is This Normal?

I am 26 weeks pregnant and experiencing arm and leg weakness. Is this normal? - my leg feels tired

I know it is normal to feel tired or exhausted. But it's not like my arms and my legs feel like I am on a ton. So, where sometimes after a short walk in my house are tired, my legs feel tired. My arms feel, but not so extreme. Is this just a symptom of pregnancy, normal, or is it something I need to see or call my doctor?