Does anyone know what this is?

Does anyone know a manga where a girl was in love with a boy but she died catching a pregnant lady(I think) then she reincarnated as her loves neighbor but she is 10 and he is like 20. She says she loves him and he said he isn't ready to move on from his old love. She says she loves him again when she is 16 and he says he will date her. They end up getting married but she never told him she was a reincarnation of his old lover. She even visits her old parents and brother. Do ya know??? （￣へ￣）