Pregnancy sickness

I have been pretty sick the past couple weeks with afternoon and evening sickness. Even though it is called Morning sickness I am usually okay for a few hours in the morning.  I am also very tired. I have been going to sleep around 7:00 p.m. I am trying to wean Nathan because I feel like with all the throwing up I am not getting enough fluids in me anyway. He is not very happy about it. I have got him down to nursing 1 time during the day and some times a couple times at night. I am hoping that within a week or two I can get him totally weaned.