Sorry this is long but my last period was Dec. 8, i had unprocted sex the 20,21, and 22. I usually have my period about the same time every month. I am having pregnancy symptons like headaches, back aches, my stomach feels tighter, feeling sick but not throwing up, im always tired, i eat and drink more and im having mood swings. Yesterday i woke up and had light brownish/pinkish color in my panties(sorry tmi) its has mucus in it too, and its nothing like my usual period. Can you help me?