Hello everyone I'm having my first pregnancy ☺️☺️☺️ We're at 18 weeks …

Hello everyone I'm having my first pregnancy ☺️☺️☺️ We're at 18 weeks and 5 days I wanted to ask what kind of movement is there in the first trimester? I feel like something is swimming inside my belly, it's the movement and when will he start punching? I'm worried about this, please tell me It feels like there's no movement from the baby.