Wow Irene...you're just really on fire starting these threads here lately huh? Are you on a Dairy Queen high?
Anyway, me personally, never start on the first heat. We bred Trixie on her second, but then again, she didn't go into heat the first time until she was over a year old.

I also don't breed 2 heats in a row. I know some breed 2, then skip one, I would prefer to skip...but that's just ME.