Ok here is the updated info on this matter. I called the local GP in my area yesterday to make an appointment. I explained my situation to them and asked what documents I needed to bring along. The woman on the phone wasn't sure so she asked someone else. Came back to me and said that I would not qualify for free treatment with the NHS because I have not been here for 6 months. So I phoned up another GP to see what they would say, and they also gave me the same answer.
Today I went down there and was told once again that I did not qualify and to register once I had been here for 6 months (I've only been here for 1.5 months). I told them that I was working, had an NI number and was already contributing so why wasn't I qualified?!?!?!!!!
Especially when there are people who don't work and don't pay the NIC and they still get treated. She asked for my passport, a council tax bill (which I did have on me. I went prepared) and then walked to the other room. Came back a few minutes later with some forms to fill out and told me that they normally would not do this but since I was already contributing that they would accept me.
So are we actually entitled to free NHS treatment on spousal treatment? I would say register after 6 months I guess, according to them.