Humm. I would do a beta test (blood test) to make sure. Some people spot while pregnant.
I agree with Durban81, blood tests are more accurate than HPTs. It is possible for some to have spotting or slight bleeding while being pregnant. But do call your dr and have a blood test done just to be sure
Call your dr and do a beta test. My mother bleed through her first 2 and was fine on both. my bf also bleed for 2 weeks and was fine. Call ur dr and tell them and they will get u in today.