A woman can get pregnant any time of the month. We all have different cycles. I would recommend taking a pregnancy test. And use protection every single time no matter what time of the month it is.
Yes it did help thank you(:
sweety u need to determine ur fertile times before worrying about pregnancy as it only happens midcycle so if u have a 28day cycle then ur fertile time will most probably b around day 12 - 16 as the sperm can live up to 5 days. if u think the day u had sex falls into this category then start worrying if not, then think of other reasons like change in diet, hormones, medication, stress, etc..
hope i helped and good luck :)