Baby Born at 36 weeks

Hi mommies na katulad ko na ipinanganak baby nila at 36 weeks. Ask ko lang if kelan nakakita and nagkaroon ng social smile LO nyo po? Yung saken po kasi at his corrected age of 2 months parang wala pa pong nakikita. I’m a little bit worried and always praying na normal si baby. Thanks for the answer.