Errrr 😳

So... My partner and I were sorting through the baby's room and he joked about me trying out the manual breast pump and I did for 2 seconds (never used one before lol) and next thing I know I look down laughing coz it felt weird and there was me leaking... I stopped immediately. I'm 28 weeks. 
​Is this normal? Lol I won't be doing that again! Yet! Â