With DD1 i had planned for DP, my mum, my MIL and my stepmum to be there, only 2 were allowed in at a time so they could alternate and there would be someone there to keep DP occupied... in the end i had DD1 at home by myself breach on the bathroom floor so NO-ONE not even DP got to be there.

With DD2 i just decided not to even invite anyone, they didn't get time to show the first time and it might be nice for DP to get to be there alone for this one.
I had quite a quick labor in which he sat down and read the paper most of the time but i found he was all the support i needed as the MW were awesome and very comforting.

You need to go with what makes you comfortable, ask your DH if he thinks he will need someone else if it's a long labor etc but ultimately you need to be comfortable.