Yes. Under Michigan law you cannot remove a child 100 miles from her or her "established custodial environment" absent court approval. Mind you, this assumes your husband is not in agreement with the move.
In essence, you will have to prove to the court that the move will be in your child's best interest. The increased income you alluded to will definitely assists you in making this argument. However, the income increase should be definite and not prospective.
I assume this is want you want to do. In that case you much file a motion explaining why the judge should remove you from probation. Much will depend on the judge. It also helps to have all of your fines paid.
You should immediately file a motion for interim child support. Every custody/support case has two separate lives. The first "life" is referred as the interim, or during the course of the case. The second is the finalized "life," or after the case is closed.
At this point, you may file a motion for interim child support--support that you will receive while the case remains open. This will not impact your final support award. It only serves to kick-start the process and give you some...