If i miss some days on my birth control will that make my menstruation cycle even more irregular? like will it come later than its suppose to?

Could be either: Missing doses of hormones which have been very carefully thought out to give you the best protection and least side effects can certainly throw off your period. It could come early, it could be late and you could be pregnant. If late, I suggest you do at least one pregnancy test to make sure this is not the cause. Then find an app or alarm on your cell phone that can remind you to take your pill.