protected through placebo week

Allison
I started my birth control June 4th. I have taken my medication at exactly 8:30 since, and have not missed it. My boyfriend and I have unprotected sex. I've been spotting, maybe almost 2 weeks now, which I know is a side effect. I took my first placebo pill yesterday at 8:30 when I was suppose to, but I also had unprotected sex. But, I'm still bleeding the same amount I have for the last two weeks. I have no idea if this is my period or what? Can you guys answer these two questions for me? 
1. Am I protected through my placebo week? 
2. Is my body adjusting to the pill, when is my period gonna be here? How will I know if this is my period or if it is still spotting?