The former Rangers fullback told the Daily Record: "My missus is down here right now and will go back to Scotland to have the baby. We are looking for a place to stay. In my eyes, the family comes first and that is why it was a massive decision to come to London.
"The move was brilliant but the timing was not ideal on the personal side. It was things behind the scenes, like the family, that made me weigh it up for so long and hold me back a wee bit.
"But, after this debut, I feel as if I've made the right choice.
"I spoke to big Lee McCulloch about playing in England. He'd done it with Wigan and assured me I would be fine. The other side to it all was what would happen if I said 'No' in January and then there was no offer in the summer.
"I had to ask myself, 'Will I look back and 'Should I have done that?'
"When you get an opportunity like this you just have to jump at it."
The Scot added: "I did not feel any added pressure with the fee. I believe in myself and know what I can do. I just tried to play the way I have been with Rangers and Scotland. Spurs have bought me because of that and I hope I can do the same job now I am here."