Where to go in singapore

Hi, jus want to know where do you hang around in singapore while pregnant in 2nd tri? Understand this phase should be the most comfortable phase, but i do feel tired and soreness still and require to sit down after walking about for a while. Water theme parks and USS are out , shopping malls are pretty boring. Wanted to spend some time with my husband going on dates but always not sure where to go. In the end would be eating out only and head home.