Man Problems Has Arrived #help

I have been with my partner for 5 years and we are now expecting our 1st child together. (His 1st my 2nd child) I am 6 weeks today and when I became pregnant I immediately felt it. For the past two weeks I've been really sick to my stomach unable to eat and unable to keep my prenatal vitamins down. I get very uncomfortable and have really bad mood swings and my sex drive Has just went out the window. Last night my partner referred to me as a vegetable because I wasn't in the mood to do the do. I can admit that I have been very tired and sleeping a lot and I think this pregnancy is affecting my relationship. What should I do?