I've had an awesome time. Started it in august 2010 after a pregnancy scare. Normally I am very sensitive to hormones medications etc. So I was worried I'd be very sick. I had the usual issues they warn about for the first 3 months. Which btw are pregnancy like for some. After the 3 months adjustment period I feel normal again.
Do you have unprotected sex on the pill? And if yes
Then when did you start not using an additional form of contraception?
I wouldn't recommend unprotected at any time even if on b/c because it does NOT protect you from HIV/AIDS or any STD. Nor is it 100% effective at preventing pregnancy even if taken perfectly as directed. I am living proof of that. And so is my little brother. My mother was and still is a perfect medication user. Never late forgotten etc but 2 times she got pregnant while on the pill.
However I cannot say this and preach to you how you should always use backup but I have to say I am not using backup faithfully. I try to but since I use the pill I am "safe" that will eventually bite me in the behind but it's my choice.
People say something like 1-2 weeks and you're protected (I think) but wait ATLEAST a month.