Kam On wants to get a baby boy. His friend suggests him to make love with wife at certain time schedule. By doing so, this will increase the chance of having a baby boy. He then tells it to Ah Kuen. However, they find it hard to follow strictly. At last, Ah Kuen discovers that she has been having a baby for 3 months. Kam On is very happy and tells everyone about the news. Kam On is told by his friends that a pregnant woman should stop vomiting after 3 months. At the same time, he hears Ah Kuen calls somebody's name while asleep. He then starts to suspect that Ah Kuen has the baby for less than 3 months and the baby may not belong to him.