When do you start to feel the baby?

I'm 17 weeks and I think I've been feeling the baby for a while but I don't know what to compare it to because this is my first time carrying this far. First I thought it felt like getting kicked in the vagina from the inside but now I think it feels more like when somebody flicks you. Us tech told me it could be the baby putting pressure on my cervix and the nerves causing the feeling that I'm having but Something is telling me I feel the baby moving.