Purplelight,
Im so sorry to hear about your situation.
I dont think your sponsor(s) can have your visa revoked. That decision is up to the Home Office.
If the marriage was entered into in good faith and you have shown sufficient ability to take care of yourself and your child without needing public funds then you may have a strong case.
If you were a victim of domestic violence and you have the ability to proove it then your case is especially strong under humanitarian rights and you would likely be granted ILR if the domestic violence occured during your probationary period (
Link to Immigration RuleI couldnt get much info from the HO Immigration Rules but when you seek advice make sure to ask about the "Curtailment" rules which govern the HO's ability to refuse someone further entry if they have more than one month's stay left on their probation when the marriage has broken-down or terminated.
The Immigration Rules are a great source of information and although its a lot to sift though and sometimes hard to understand (government speak and all) it might benefit you to have a look.
Home Office: Getting Immigration Advice might also be of use to you.
In the letter I got from the HO following my approval of Further Leave to Remain it says: "If your marriage is no longer subsisting, you are advised to contact the Immigration and nationality Enquiry Bureau on 0870-606-7766 to seek advice on wheather you may qualify to remain in some other capacity." Be sure to remain anonymous for now.
It also says short term emergency assistance from Public Funds is ok and wont result in a refusal unless its clear that you are unable to maintain and accomodate yourself and any dependants.
The letter directs us to HC395 of the Immigration Rules, for info regarding spouses of UK citizens and settlement in the UK.
I hope this information helps.
Best wishes,
Sarah
PS: If your in-laws wont let you see the marriage certificate just contact the registrar that married you and ask for a copy. I think a copy of my certificate cost £20. You may need to go to the registrar to sign for the copy but you dont have to have your husband with you. Its your right to have a copy for whatever reason you wish.