Grimes has seemingly announced she is pregnant on Instagram:

I thought about censoring them for a hot minute haha (this may get taken down anyway) but the photo is so much less feral without the nipples. Plus being knocked up is a very feral & war-like state of being. Might as well be what it is. Plus most of my friends told me not to post them so then I was afflicted with reverse psychology. Interrogated my shame on it and decided it was sum weird internalized self hatred to feel uncomfortable abt my body. Hope ur having a nice day!