no spark anymore

So I'm like 39 weeks pregnant and since I was about 33 weeks I felt like my relationship with my significant other has no spark. We just seemed like we are on two different pages. We hardly get along and we always bicker. Sex life is a bore, it's like we can't seem to be like we were before. I find myself not even attracted to him most of the times. Is it my hormones or is there just no spark?