No kicking...

i felt the first kick at week 16 and then another towards the beginning of week 17, im 18 weeks now and havent felt anything in a week or so... should i be worried?

Quoting Brooke Alene Powell:" i felt the first kick at week 16 and then another towards the beginning of week 17, im 18 weeks now and havent felt anything in a week or so... should i be worried?"

nope.
not yet.

Baby still has plenty of room so you shouldn't worry

Still early. I felt my son at random starting at 17 weeks. Didn't REALLY start feeling him till after 21 weeks.

na I don't think I'd be too worried most babies don't really start moving a lot until 20ish and up weeks. I think you're fine!

I felt my first kicks at around 17 weeks and didn't feel anymore until after 20. Your baby is just in a place where they can't drum on your uterus right now. =] Some mommies don't hear consistent kicks until close to 24 weeks from what I've heard. Get an at home doppler if you're worried.