I'm not sure on how many people are allowed to accompany you into the labour ward.
But, I'm sure that if your husband is to be absent, you can definitely choose to have another person to accompany you throughout the process.
In cases whereby someone request to be in labour ward with you, and you object to it, he/she will be denied of entrance and attendance.
So no worries about it.
All hospitals allow for accompaniment throughout the labour.
It's important to have someone supportive with you throughout the process. (: