Home purchase

My husband and I are now separated, though not through the court system as yet. My question is this…one week before we were married, my husband purchased the current house we have been living in. We have been together for 21 years and the house was paid for using mutual marital income. It is solely in his name. Do I have any legal claim to a portion of this house? It has greatly appreciated in value. Thank you for any information you can supply as to my rights to this property as part of a settlement.

Yes, the equity in the home will be largely martial based on the amount of time spent in the home and the contributions to the same over the course of the marriage.