Hey Ladies!! Very Important Birth Control Question....?

Ok, so I have been on ortho evra (birth control patch) for about 9 months now. Since my first round of patches, when my cycle comes around, I have been able to pinpoint the day that it will show it's ugly little face give or take a day. I am now 5 days after what would have been +1 day and still no crimson tide. What do you think, should I do a hpt? Preggo? My husband has been wanting to ttc. We haven't been trying, but would definately welcome a wee one. Our second wedding anniversary is Monday and I know that a positive hpt would be the best gift ever....So, Ladies...What do you think?