Hello. What a difficult situation - I am sorry for your loss.
What happens to your husband's estate (all of his possessions) doesn't depend on the relationship he was in with you, even though you were living together.
His estate will be dealt with in one of 2 ways:
1. He left a will. If he did, there will be an executor of the will who essentially sorts out the will and probate to ensure that the beneficiaries receive what was left to them.
2. He didn't have a will. In this case his assets will be distributed under what is called the intestacy rules. This is essentially a set of rules which sets out who gets what first. The who gets what first is determined in the following order
If one partner dies without leaving a will, the surviving partner will not automatically inherit anything unless the couple owned property jointly. So, in your case, this is whether your name is ***** ***** the title deeds to the property.
The way assets are distributed if an individual dies intestate, is that their direct family is automatically entitled to their assets. Specifically, the spouse will inherit the entirety of the assets (NB, this is a spouse or civil partner, it is not a "common law" partner. If there is no spouse, however, assets will be inherited by the next available relative and distributed equally.
The order of distribution is: Spouse or civil partner., then Children/grandchildren, then Parents, then Brothers and sisters, then Grandparents., then Uncles and aunts.
There is some very useful information on the CAB website which specifically covers what can happen in your situation where you are not in a civil partnership or married.
Essentially, you need to establish whether there is a will and whether you are a beneficiary. If not, you need to know whether you are formally registered as an owner of the house as this would mean you own a share of the house. Otherwise, without a will assets are distributed as per the above list.
I hope this has answered you questions. If not, do let me know.