Exciting! Did you put them in on the same day? As long as you put them in on the same day they should all hatch on day 21. Count today as day 0, then tomorrow as day 1. Your eggs should hatch on day 21. Congrats! Keep the updates coming!
Congratulations! Its SO exciting! Yes, you should be able to set all the eggs. If people can successfully hatch grocery store eggs, your eggs should be just fine. :D
Don't forget to post pictures!!!