Farming and Raising Kids. Either the Biological Mom or the Stepmom Is Fine, Preferably One Who Transmigrates Before Abusing the Child 种田养崽，亲妈后妈都可，最好是在虐待崽崽前就穿

Looking for pure farming-and-child-rearing stories where someone transmigrates to ancient times or the 1970s or 1980s. No excessive scheming, palace intrigue, household fights, or neighbor disputes. The original can be the child's birth mother or stepmother. Most importantly, I want the transmigration to happen before the original starts abusing the child, so there's no need for a redemption arc.