Hey im 21 and Well I did the deed on my third last fertile day 29/11 without a condom and a week later I have started getting cramps and just a yuk feeling I'm not due for period till the 11/12 but just curious to weather or not I should be worried about pregnancy this early considering I haven't missed my period yet I know there is a chance I could be just wondering if anyone has had the same experience before any advice