I'm too tired !!! Help is this normal ?

Tania
Hey ladies I'm almost 36 weeks and I'm miserable. Im so done being pregnant and I can't wait to meet my baby boy!! I have my own business wich I have been neglecting since I'm too tired !! I want to do more but it seems like I'm always sleepy and I can't ! I've always considered myself as hardworking and now that I can't do it I feel lazy and irresponsible ! I hear people tell me that it's normal to feel tired and that I should rest ! But then yesterday my mother in law made a comment that I was just using my pregnancy to be lazy ! I felt insulted but what if I am ? Am I becoming lazy ? Is this normal ? Should
I try harder and just get things done ?