I'm a 25 year old unmarried female. I'm sexuallly active with my boyfriend. I had my normal period on 25th jan for 5 days and then I had sex just after it was over and had an emergency pill .. I then got my period again on 8th feb for 6 days again. I again had sex a week later. On 23rd feb I had a brown spot and then again on 25th feb I had a brown spot. But no spotting. Jus that once both the times. Could I be pregnant? Or what else can it be? My regular periood cycle is of 40 days. I'm extremely worried and afraid. Plz answer my ques asap. Thanks alotttt