Amanda,
Are the ultrasounds for Cengenital Hip Dysplasia?
As it runs in my family (neither girls have had any need for concern though) but my sister wore a splint & her kids had slight hip probs (all perfectly fine now) anyways they suggested to her & to me when I mentioned at both girls birth that it is a family thing that double terry cloth nappies set the hips into a good p[osition to help aid it!?? (well they explained it better than that) I have always used cloth nappies anyways, but maybe you could ask & see what they think???

YAY to the boys & public transport Divvy!