why wont my blazicken and typhlosion have an egg

Question

I walked at least 1,000 steps

Answer 1

See the breeding page.

1. Genders have to be different
2. Same Egg Group
3. Not baby,legendary, Nidorina, Nidoqueen, or Unown
4. Daycare man doesn't say they prefer to play with others.

Check 1 and 4. If they are fine you are just unlucky. :P