Me and my boyfriend had unprotected sex on January 28th, 30th and Feb 1st. My fertility window was January 26- Feb1st. With ovulation on January 31st. Since then I have had nausea without vomiting,a lot of fatigue,frequent headaches,light cramping,loose stools,constipation,and diarrhea,frequent urination,pains coming and going in my breasts and vagina.I have had more discharge than usual. I spotted pink and brown blood 5 days after unprotected sex with mild cramping 9 days after ovulation. Sometimes my discharge is white and other times its yellow.My period doesn t come on til Feb 14th. I ve never had any of these symptoms before now. I took a HPT today feb 10th. I got a negative result. Could I still be pregnant?