hi, well my concern is that i may be pregnant, but i haven't taken a test. About a month ago i had sex, i am pretty positive that we used protection, and i got my period a few weeks later, it was super super light and i am not even sure that it was a true period, i also read some where that women mistake their period for spotting and end up being pregnant. So after i got what i thought was my period i started getting nausea, cravings, back pains, my stomach seems to be getting bigger abnormally, and more symptoms of pregnancy. So my question is could i have mistaken my period for spotting and be pregnant?