so I've been having sex with this guy that I've been talking to lately and the first time we just used the pull out method. that night I started to lightly spot and continued for about three days. about a week or so later we hook up again pull out method then with a condom. but the very next night I started to have cramps and a light to medium flow going. I've always had irregular periods so I don't know what to think of this. is this my period or is this because the sex. also anyone know what my chances are of being pregnant? any non judgemental advice would be great