My last period was on Sept 25th, i had unprotected sex on the 2nd and 3rd, Now I have started too see some of these symptoms for about a week and a half now, like spotting brownish which i never saw before my period, sore breast, cramps and bloating, very thirsty, peeing alot, and abit tired, could i be pregnant? or these are the signs that my period is around the corner.