I had a brown spot about a week ago and my period was due around a day or two ago. i've had unprotested sex but my boyfriend didn't cum in me but there is a chance some got in. i have been pregnant before and had a misscarage. my breasts don't hurt at all which is weird because they usually hrt when i'm about to get my period or when i ws pregnant. i took a test yesterday and it was negetive, but it may have been too soon. I haven't been any more stressed than usual. what are the chances im pregnant? Is it too soon to tell?