spotting on the pill??

Nikki • I love a lil rock n roll, my furbabies, and a nice glass of wine. It's all happening.
I take my pill religiously, same time every night. I've been on it for about two years. Today I started spotting?? I had a heavier normal discharge yesterday too. I haven't missed a pill. However my bf and I did have unprotected sex on the 14th and he did not pull out. My period is not supposed to start until a week from now. Should I be worried??