Given the data you provided, pregnancy is only possible if your menstrual cycle was shorter this time and was supposed to last 23 days, because ovulation occurs exactly fourteen days before the start of the next period. This possibility stands as possible. Therefore you have to check for pregnancy. Home pregnancy tests usually detect pregnancy between 15-20 days after conception (depending on the brand).


You are also advised to visit your gynecologist to check for pregnancy for sure. If pregnancy is ruled out the symptoms might be related to minor hormonal changes which might turn out to be temporary or might need additional hormonal treatment.


If you ovulated on the 12th day after the start of your period and had intercourse on the 9th day, then pregnancy is not an option because the spermatozoids cannot survive that long to fertilize the egg.