Do you like simple, one or two syllable names, or longer, possibly more than one name? When I register mine, I generally like to have something short that I can pull from their full name and use it as their barn name...
Colt:
Ringo
Rowdy
Rockstar
Ralph
R and B
Rageous
Ranger
Ravin
Roman
Romeo
Ringmaster
Filly:
Raine
Rainstorm
Red Roses
Raindance
Robin
Rihanna
Royal
Rising Sun
Rise to Glory
Roxy
Hope that gives you some ideas- and by the way welcome to the forum! Hope you'll stay with us, and let us know when that baby arrives (with plenty of pictures!) you can introduce yourself in the Introductions tab if you'd like to. Then post away

~