 [ Symptoms ] pain lower right abdomen feels like being torn pain when breathing what can it be [ Disease ] hi it could be possible but sperm that is been in your mouth the acids in your mouth could kill it but then this was straight after your period but then chuck in that some women can get pregnant from anytime of the month its a bit of a mine field just one last thing have you done an hpt or had a doctor do a pregnancy test or it could be just a skipped period it does happen things to think about good luck