Is it weird to see baby move this early?

Hayley • ~IT'S A GIRL!! 💕baby # 2 due May/June 2019~ 💙William Jack 17-08-17 💙
I was sitting down last night and felt a few little pokes to the left of my belly button but lower down. I looked down and saw a kick! I ended up seeing 2 more after but my baby did not do it the whole time my SO was watching just waited for him to leave I think lol anyways I'm only 18 weeks 3 days so just wondering if that's normal my SO thought it was a bit early. I've had flutters since about 16 weeks 2 days. 🙂