We talk about multiple birth when more than a single embryo implants and develops. Common multiples are two (twins) and three (triplets). New topic Topics Messages Latest Update How can I get pregnant with twins? 4 1 month, 3 weeks ago New topic Create New Topic in “Multiple birth” Log in Log in Forgot your password? Or Login with Facebook Not registered? Sign up here 2017-01-26 22:44:10 inviTRA Sandra F.