Quote Originally Posted by myliitlehaven07 View Post
...............or if i use one month over here, Will it not endanger my application for ILR after my visa expires??
You should have a 27 month spouse visa.
The qualifying period for ILR is 24 months living in UK. As long as you arrive with enough time to complete the 24 months you'll be OK

Try not to worry too much about your Heathrow arrival. It will all be smooth and there'll be no problems.
Be sure you have all your important documents handy in your carry-on.