OK My period wasn't supposed to come on until the 17th and its on now, but it's a brownish color and not as heavy as it usually is. Me and My boyfriend did have sex on the 30 of Dec unprotected... I'm not having cramps and my breasts aren't sore like usual... Ive been feeling sick to my stomach when I smell certain things or when I don't nothing at all. I stand up and get dizzy and I have been eating like crazy.. Any answers?

Any time you have protected or unprotected sex you run the risk of pregnancy. The usual pregnancy sign, of course, is NOT getting your period.

You can ask your Pharmacist about a HPT or see a Doctor - or wait.

Yeah that's what I said until I seen it wasn't red it's more of a brownish color and somebody said it was implantation bleeding or something along that line?

It could be, as noted there is normally just no signs till you miss a period. So if this is not a full period, wait about 2 weeks and do a pregnancy test, first urine of the morning.

But yes pregnancy is possible