I am not a solicitor but my brief understanding is
Unless you ringfenced (prior to divorce) any inheritance or investments as a legally binding document, then all the equity is considered 'joint'. The law takes into consideration the length of your relationship, and not just your marriage, as long as you have been married for more than one year. It makes not one jot of difference that you had separate finances or shared finances if no other legal document (e.g. a pre-nup, a ring-fencing agreement etc) exists.
The starting point for divorce is a 50/50 split of both assets and pensions. It gets more complicated when children are involved, and if there is a primary carer. In which case a 60/40 split, or a 70/30 split of assets is more typical - especially if the non primary carer has a substantial earning capacity compared to the primary carer.
The welfare needs of the children are considered paramount in a divorce first and foremost.
However, oftentimes the primary carer will off set most/all claims on the pension for greater ownership of the house. This is not always a sensible decision but born out of necessity.
However, it much depends on your/your husbands ability to meet the needs of your separate lives.
The best advice I can give you, if you wish to avoid solicitors, is to read 'Family Law' by Slater and Gordon.
www.amazon.co.uk/Family-Law-Made-Simple-Separation-ebook/dp/B00IUJZ89G/ref=sr_1_11?ie=UTF8&qid=1406252609&sr=8-11&keywords=family+law
It may not be feasible for you to say in the family home, given you have so little equity, and may not be given a mortgage by yourself. On the other hand, you may well be in a position to buy him out, and get a mortgage in your own name. Equally, he may relinquish some equity to reduce his maintanence payments. These are all areas to be disputed/negotiated.
My advice is to speak to a solicitor in person, who could outline your best/worse case scenario, and then you negotiate with your husband from there. Your husband may well want to secure a home for the children first and foremost. On the other hand, he may be one who wants little or nothing to do with them financially speaking.
Thus: Every divorce is unique so it's impossible to say 'this is what will happen'. However, the answer to your question is the starting point is a 50/50 split of the assets and liabilities (with exceptions) at the point of divorce. The rest is negotiable.
9/10 of the time, it comes down to what you agree between yourselves, without the involvement of solicitors. If you are 1/10 it is because you can afford the 5 - 20K of legal fees, and because you stand to gain more than the costs.