What's the Name of That Book??? discussion

I'm not sure exactly when I read this, but I'm pretty sure it was the late eighties (probably not earlier than 1987), possible the really early nineties. (Not later than 1993.) I borrowed it from the library and I think it was new at the time.

The book took place on a spaceship, which has a bunch of stored fetuses or babies. The main character was a girl, who'd been taken out of storage by an alien and raised by her(?). She eventual discovers there's another alien on the ship, and that he(?) has revived a boy and raised him. (Or she knew about the alien, but not the boy.)

I didn't finish it for some reason, so I don't know if the ship ever landed, or if there were more than those four characters.

Alien Child by Pamela Sargent?

Here's a description from Amazon:
"On Nita's 15th birthday, her alien guardian Llipel reveals the story of her birth. Llipel and her companion, Llare, landed on Earth and discovered the Institute, a place founded before the last series of wars had killed off the human population. Llipel stumbled into a storeroom, full of thousands of fertilized human-egg cells. A careless word, as interpreted by the computer that maintained the storeroom, started Nita's life. Llare made the same blunder and became guardian to a boy only a little older than Nita. She and Sven are the last humansexcept for the unbornin the world. Together they learn the horrible truth about their ancestors, a race of creatures that destroyed itself by war. Nita and Sven hold in their hands the power to reform humanity or to let it die. This finely crafted work never falters with false resolution; the children don't find any survivors, though they look, and they do not fall in love or react in ways inappropriate to their socialization. An honest and compelling examination of "What if. . . ?" Ages 12-up."

Btw, this has been searched for before:

https://www.goodreads.com/topic/show/...

https://www.goodreads.com/topic/show/...

There's also a book, about a girl raised from fetal-hood by a robot...

And another story, kinda related, which I'm going to start a new post for.

Hmm... I'd thought they were in space, but that looks like its probably it. Thanks.