@Booboomylove
Your house is now at risk.
If you divorced now (which hopefully is the very last thing on your mind), after a short 6 months marriage you would both likely walk away with the same assets you brought into the marriage, i.e. him with his property that he may have almost no equity in, and you with your house.
In about ten years time, after a longer marriage, a judge would look at it very differently and likely give him a share of your house upon divorce. If you couldn't buy him out, you would have to sell. (You would also get a share of his assets, including pension, but does he / will he have any?)
Best case scenario - you don't divorce at all. As long as you are married, the house is legally yours if his name is not on the deeds, and you can leave it 100% to your daughter if you like (check this with a solicitor).
You need wills that give your DD and his DS a 50% share each, because who is to say how many grandchildren there will be on each side as the decades roll by? Wills often give the surviving spouse the right to live in the house, even though they only own a share of it, so that they are not turfed out by offspring wanting their share immediately.
Get a will ASAP.
Meanwhile, think about your daily financial set up. You should have a joint current account, out of which all household expenses are paid, a joint savings account, and personal current accounts each. You may also have personal savings accounts.
Decide how much you will each pay into the joint current. It needs to be enough to cover all monthly bills and household shopping, plus extra savings.
Some couples pay both salaries and all other income into the joint and then transfer personal spending money into the personal accounts. Some get paid into their personal accounts and then transfer an amount each into the joint, usually based on a proportion of earnings.
Beware if you go for the latter option, the higher earner is left with proportionally more in their personal account, so has a higher 'spending power'. If this is him, it may cause issues if he is constantly spending when you personally can't afford to do so.
Assuming you sell his place, will he then go on the deeds of yours? Is so, consider 'tenants in common' rather than 'joint tenants', in unequal shares to reflect the equity you have already built up, i.e. you own a larger share, or alternatively you have a ringfenced amount and the remainder is owned 50/50. You need legal advice on this.
If he is on the deeds, the mortgage comes out of the joint account.
If you don't put him on the deeds, you pay the mortgage from your own personal account.