In theory, any non-British citizen (including EEA citizens) can be deported from the UK. It depends on the gravity of the crime.
As you have a British citizen child, the judge would look to the best interests of the child as well. But that by itself does not stop you from getting deported. The child could have somebody else take care of them (their other parent, for instance) or could be taken into social care.
So, the sole fact that you have a British child is not sufficient to stop you from getting deported if the crime is sufficiently grave.
Whether your crime is sufficiently grave depends on the judge and jury and is not a matter for these forums, but you may wish to have a look at
this link to see how crimes are judged.
