Elf Tensei Kara no Cheat Kenkoku-ki - Chapter 4Vol 05 Extra : A Story from the Past. Back When It Was Just the Two of Us

I opened my eyes to find myself in another world. For some odd reason, I ended up as a sword. Before my eyes laid a plain full of magic beasts, and so, I launched my body and flew in search of a partner, a wielder (females only). Wait. Absorbing magic stones gets me skills? Oh hell yeah! This be fun! More, more, give me more! Gimme all your magic stones! Okay, yeah no, but I am accepting anything anyone’s willing to give. This tale is one that follows your everyday nerd, normal as could be, save for the fact that he happened to reincarnate as a sword.

Waking up from a deep sleep, Lin Yue found herself having transmigrated into a peasant's new wife, and to make matters more complicated, she was a replacement for a deceased wife. The husband, over a decade older than her, had already lost two former wives. It wasn't so much a marriage; she had been sold to the family by her unscrupulous parents. Her fate was out of her hands. Before her stood one, two, three, four children, like a line of burdens, all gazing at her with blurry and hopeful eyes. Lin Yue felt an enormous pressure, “Thanks to Yuewen Book Review Group for providing review support!”

"An accident. She's pregnant. How unlucky. She got pregnant in one shot!