I was due for my period 7 days ago, no bleeding but experiencing cramps for almost the whole week.. had sex using the pull out method two days before period was due and around a week or two before that. the cramping got more intense a couple of days ago and was expecting my period the next day but still nothing. Not many symptoms except for slightly headaches here and there and sore breasts however this always happens before my period comes. Has this happened to anyone else and ended up pregnant? Should I take a pregnancy test?