Opinions please

Erin • In love with the most amazing man in the world 10.20.12 ❤️
So my period ended on November 26th and I am very regular because I'm on the pill, my boyfriend and I have unprotected sex and he cums inside of me however I have never been pregnant and now out of nowhere I start spotting which has never happened before I've never slotted before mid cycle I took a pregnancy test today and it was negative what do you guys think is going on with me my doctor said to just take a test and keep an eye on it