I've felt my baby's kicks from 14 weeks - but this is my 3rd and I'm very slim. I've been able to feel the kicks from the outside from 16 weeks (my partner has felt them too) and I've been able to see them from around 17 weeks.
Funnily enough, my bump is still very low and the baby seems to prefer kicking around near my pubic area, though also kicks a lot higher up and at both sides. If I use the doppler, the baby often kicks right on the probe!