Alaaah congratulations on feeling baby movements! Memang best gila first time rasa, especially on the right side je, at 15 weeks some mummies feel it earlier depending on placenta position and baby's movements, so that's completely normal. A few of my mum friends also felt movements earlier with their first babies, and memang the sensation mcm geletek-geletek gitu, so don't worry lah. Tapi kalau rasa ada sakit yang sharp or persistent, better check with your doctor just to be sure everything's okay, but honestly this sounds like you're just having fun with your baby already!