It is appropriate to inquire about your manuscript after two months have elapsed. Some magazines, especially in the religious field, will accept multiple submissions. Most agents will not handle magazine sales. Magazines plan issues far in advance. It is important to keep this in mind when submitting seasonal material.
Some magazines pay on publications.
They may hold your manuscript for a considerable length of time before either printing it or returning it. Most juvenile magazines do not pay large amounts for their material, but can provide the novice writer with invaluable experience.