How Are Babies Made?

Riley says to his Daddy "Mama told me babies are made when the Daddy plants a seed in the Mama's belly." Daddy says "Yes Riley, that's right." "I sure hope Sobeys gives you directions when you go buy the seeds, but I guess it's pretty easy, the Mama just swallows the seeds and her belly grows and grows and grows" says Riley. 
Ohhhhhhh if it were only that easy :)

I sure hope those are not "baby seeds!!"