Just wondering

Samantha • Had our first in November 2015, our second in December 2016, now thanks to and IUD failure we are currently pregnant with our 3rd and couldn't be happier. Maybe I'll finally get a girl.
So is anyone else already trying for there next. I know it sounds crazy but my hubby is 45 and he said if we want another they would need to be right after each other. I'm still not sure if I'm ovulating. I'm breastfeeding, but I've had EWCM and we BD'ed. Here's for hoping. At 8 weeks PP.