Am I being selfish ?

So I recently posted how sick I am in this first trimester but I  wanted some more advice a litt more personal !!! I have been so sick that me and my husband haven't had sex in a month !!!! I literally can't do anything but drag myself to work and back to bed I haven't even been cooking. Mind you we only just got married in March !!! So we are Newleyweds... I'm just not up for anything let alone nookie. Am I being selfish ? Should I suck it up or she he understand? He hasn't complained but I feel really bad like I'm neglecting my wifely duties!!!  Advice ladies ?