Aww mama, tummy pain during puasa kena jaga sikit, please go see your doctor or clinic as soon as you can, especially if the pain stays on one side like that, okay? Better to check and make sure everything's good with baby. At 15 weeks memang susah nak rasa gerak yet lah, so don't worry about that part, it'll come soon! But that side pain, a few of us mum friends also experience different things during pregnancy, so it's best to get it checked out properly by your doctor rather than guess-guess, yeah? Mummy take care of yourself first, okay!