Port 443 redirecting me to Plesk Admin console pag

[memexer]

When I call https://mydomain.com it redirects me to https://mydomain.com/login.php3 which is the Plesk login page. I tried creating a virtualhost entry in the httpsd.custom.include file but when I do this it still tries to connect to https://mydomain.com/login.php3 except it returns a page not found since I don't have login.php3 in my httpsdocs directory. Where is it pulling this redirection from? I've my document root for my virtual host pointing to /var/www/vhosts/mydomain.com/httpsdocs
Very desperate to find a solution for this so I'll really appreciate any help given.
Thank you

[Xnuiem]

I assume Apache2 on some flavor of *nix?

[memexer]

Yes, it's a dedicated Linux server with just Plesk on it. When I try to access any contents within httpsdocs it redirects me to login.php3 with url variable previous_page=index
My initial problem was that apache wasnt listening on port 443. When I added Listen 443 https began to work but with the above behavior.
Please help.