What would happen to your husband would depend upon what the Crown Prosecution Service charged him with (and, of course, whether or not he was then convicted of some/all of those offences). The CPS will be aware that many offenders will simply say "It's all lies", forcing the CPS to produce evidence in court to support their prosecution of the case.
So you need to ask yourself what evidence (such as witness statements or medical reports) could be made available to a court. Even if you can't think of much that could help in that respect you still shouldn't be deterred from reporting the matter to the police.
It's likely that, while the case is waiting to get to court, your husband would be given an interim order prohibiting him from contacting you (effectively forcing him to find somewhere else to live). Even if he managed to avoid being found guilty of any criminal charges (because the court couldn't find enough evidence to prove the case 'beyond all reasonable doubt') your statements alone would probably be sufficient to get a permanent civil order against him, barring him from ever contacting you again.
In the first instance though it might be best to talk to someone on the Refuge helpline:
https://www.refuge.org.uk/get-help-now/