You should push to know the exact terms of the will, get a handle on your financial status (ie how/who owns house) and, if you can’t come to agreement with your husband and get his will rewritten, at least get your own will sorted and indicate wishes for guardianship.
Our family home is owned in my husband’s name. He’s left it to my son, which is the norm where he comes from (Napoleonic law) but I have a life interest, with the ability to sell, rent out, or purchase a new property, as long as any benefits derived are for my son and any new property is bought for son’s benefit. I am absolutely fine with that.
I have my own plan b, which is sufficient funds from my own house sale (bought before knowing husband) and any subsequent property I buy (in my name only) will also be left to my son.
Our wills are written in trust, naming both of us plus my brother as executors. I also have my own life insurance, again written in trust for my son (takes it outside inheritance tax).
Always have a plan b if you can. Know your financial status, do an audit, check your pension fund expression of wishes etc and, harsh as it may sound, never trust your spouse to do the right thing by your children if you die and they remarry. People change, or forget to write new wills, or change wills in favour of a new spouse. Only way to protect your children is to get it in your will.