Welcome Leanne,
People often come to the site here and notice that their 1111 prompt has changed a bit, sometimes interspersed among the 11's are other numbers. Most common are 22's, 33's and 08's perhaps...but I smiled when I read your post because early on I too saw the sevens and ones.. My first prompt that really grabbed my attention was my birth date number, 711, repeated over and over on one particular day much to my amazement and delight. I frequently too see 17's which I attribute to my own personal Guardian Angels. It often comes at the sweetest and most needed of times, a gentle reminder of shared love and that they are close by.
A lovely author, Doreen Virtue, says this about the meaning surrounding ones and 7's..
1's and 7's, such as 117 or 771 - This is confirmation that you are doing great. You are on the right path, so keep going! This is a sign that you have chosen your thoughts well and that you should focus more steadily on your objectives. Be sure to add appropriate emotions to your thoughts; for instance, feeling grateful for the gifts you have in life. Gratitude will speed the process of your manifestations.
Here too is a URL that speaks of number sequences....
11:11 - more questions about number sequences
http://board.1111angels.com/viewtopic.php?f=4&t=2059
Well these are simply, my thoughts... coming right off the top of my head but within you lies the answer. It is in the discovery of the meanings..the personal meanings and the delight this ever growing communication brings and most importantly, the Divine places it leads that truly is the gift of the prompts...
It's nice to meet you Leanne!
Love,
Sandy