5weeks and 6 days pregnant. With enometrioses..

Sam
Hello fellow preggies! 
Finally we're pregnant! Being a woman in her late 20ies and having endometrioses. And getting pregnant naturally has been the best start of the year of my whole life. 
But afcourse with this joy, i also have worries. Since its still so early in the process. Was wondering if feeling weakness in thighs and legs is normal? I feel like i've been running for hours. And everything from the navel and below is "tired".. And weak. It's really hard sitting, walking and sleeping with it. It's been like this the past week. Anyone feeling the same? Or have advice? 
Best regards
Sam