I run with my pram hun, and yeah, i can't use my mp3 which is a drag, but she's nearly a year older than your DD so she is constantly chatting at me "tree" "water" and so on. TOday she had a snack while i ran! Lucky lady!

Something i try is to count breaths as i run, two footfalls for every breath in or out so IN (left, right) OUT (left, right). It really helps me to stay rythmic and not overdo things (i have a tendency to run flat out until i'm injured or sick) which in turn means i don't get all out of puff and i can run longer (once you're running continuously you'll see what i mean better on that one) and to think about things and even sing songs "in my head". That helps me miss the music less.

It is a bummer to have no music though.... could you put the headphone in one ear only and the volume low so you still get your cues and can hear DD all the time too? Switch ears so you don't go deaf on one side

Bx