insensitive

i’m 33 weeks along & stretch marks are getting worse on my butt n thighs, getting heavier too(165.6cm 59kg. pre-pregnancy 48-51kg) . i’m super self conscious n insecure about my body since even before pregnancy, my partner doesn’t seem to mind but he jokes about it sometimes or just stare at my stretch marks n it makes me feel so disgusted with myself, i’ve mentioned many times that i don’t like my body n i’m self conscious but he still continues being insensitive.. what do i do?