I always want to have a baby for him [Quick time travel]

The younger brother, Lin Yun, has had nothing to do since he married He Yingfei for eight years, and has been disliked by his neighbors and parents in the countryside.The only husband who treated him well died in battle, and he died with hatred. The only thing he was not reconciled with was not being able to give He Yingfei a child.After the rebirth, Lin Yun is bound to the birth system, but why is every world struggling for the birth of children with different identities. "Female, give birth to a cub? "(Also known as "My Husband Is a Bear") (Completed) "Queen of Snakes, Lay an Egg? "(Completed) "Master, which one is you?" "(Completed)"Brother, have a baby! "(Completed) Fanwai (Completed) Lin Yun from a certain world: System, can you make a consultation so that I can have a child for my husband-in-law in this world?System: Sorry, you are a pure man in this world, not a brother. If you want to have a baby, let's work hard to conquer the next world.Lin Yun: I don't care, I will give birth to my husband.System: Where did the snake spirit come from, get out... 1. Main subject, various types of gong, shou whose personality changes with the attack 2. Gong and shou are the same person in every world