“Chih-Tih!” Nall squeals, probing the translucent air bladder.

“Yes, baby, Chitlids.” My voice comes out tight. The spring has been so late, so cold—I’d thought we’d seen the last of the Chitlids. But this morning we awoke to hundreds of them, dragging their long tentacles through the air between the swaying dandular trunks.

Nall grasps at a Chitlid that puffs just out of xer reach. Pursuing, xe runs through a patch of yellow irrenes, spore pods bursting, and I hurry after. A rustling from a large spench bush pulls xer up short. A turam bolts from it, long legs and orange spots flashing as it disappears into the dandulars.

“Jaff!” Nall cries, clapping with glee.

“It does look like a giraffe, doesn’t it?” I laugh. “But giraffes are from Earth, baby. That’s a turam calf. Tu-ram.”

“Tuhm,” xe repeats, breathless with wonder, and my heart cracks. The turam’s diet relies heavily on spench berries. As our summers shorten, spench yields drop.

A familiar dread settles in my stomach, as I imagine the day I’ll have to explain to Nall that all the animals xe’s learning to name so lovingly will soon be gone. “We didn’t know,” I’ll tell xer. “Not until you were nine months big in my belly. We didn’t know that a solar system away, a star was collapsing, wrenching Coron from its orbit.”

Past the dandular canopy, our sun shines at high noon, a few dozen light-years farther away than it was at this time last year. Next year, it’ll be farther still. And ten years from now, after the last perihelion, we’ll be too far gone for it to ever pull us back. All the humans on Coron will descend into the subterranean caverns we are fervently constructing, to live off geothermal energy as Coron hurtles into deep space.

I wrench my mind back to the present, to Coron’s surface, where it’s, “nap time!” for this toddler.

I carry Nall back to the habitat as xe howls and makes xer joints all loose in their sockets, trying to slip from my arms. If Nall had xer way, we’d never come indoors. We’d explore gladial patches and hunt cardizes until xe passed out from exhaustion.

Back in the nursery, I dim the walls and set them thrumming with white noise. Nall calms down as soon as xe starts to nurse. Our bodies curl together on the bed, and I bury my nose in xer hair, wishing we were simple beasts. Turam and calf. Ignorant of the terrible future. When xer breathing slows to a snore, and my nipple slips from xer lips, I ease up out of bed.

But as I stand, the room reels. My vision clouds with spots, and I have to fight for consciousness. After a few moments, the dizzy spell passes, and I creep from the room, sealing the door behind me.

I must be anemic again. I’ve been breastfeeding Nall for almost two years now, and I get so sick of the daily nutrient injections. The med-droid will remind me to get my postnatal shots, and I’ll snooze its alert again and again, sometimes accidentally shutting it off for weeks at a time. So I keep making myself sick like this.

Now I summon the med-droid from its storage alcove and press my fingertip to the quick-read sensor, flinching at the prick. My vital stats appear on its face. Iron count could be higher, but I’m not quite anemic. I need some B12 too. One line of my health report is flashing red, and the information there is so unexpected that my brain takes long moments to process it.

Human Chorionic Gonadotropin detected.

For a thousand years, we’ve known that HCG in the blood means one and only one thing.

I’m pregnant.