Girls its perfectly normal, the worrying thing... every milestone (12w, 19w morph scan, 24w gestation, etc etc etc) has just bought me a new worry. First it was I need to get to 12w then everything is fine, I need to get past the morph scan top make sure there is nothing wrong and everything is fine... etc etc etc. We all worry and thankfully for the majority of us it is unnecessary but hey I'm 35w and I'm still worrying about silly little things.