Is Bleeding With Mucous Sign Of Periods Or Pregnancy?

I have a fairly normal period, It usuall comes between the 27-30th of each month. I ovulated on the 13, and my fiance and I had sex on the 14 unprotected. I have been throwing up and my breasts and back hurt really bad. I took 2 pregnancy tests, one yesterday, and one today. But today I started bleeding, but it was like cervical mucus, but it was grey-ish and pink-ish. Am I pregnant, or is this my period?