Till a week ago, you were
not married!
Under current rules:
1.If you and your spouse live outside the UK for at least 4 years then your spouse may be eligible for ILE (similar to ILR), and then after staying in the UK for 3 years he/she may be eligible for British citizenship.
2. If you wish to return to UK before the 4 years stay (outside UK) is over, then your spouse will need to apply for settlement visa to enter UK, live in the UK for 2 years to be granted settlement (ILR) and then apply for citizenship as and when he/she completes 3 years residency in the UK as spouse of a British citizen.
3. Child(ren) born to a British citizen father will be British (British by descent if born outside the UK).
regards