I had my first day of period last August 1, average cycle is 26 so next cycle will be in 6 days. Had sex on the first day of period (August 1) with condom and no ejaculation inside. Then after a week maybe August 8, I felt that my breast felt fuller/bigger and nipples are not that soft anymore. Is this one of those pms signs but too early for pms? Cause usually I felt pms symptoms just days before my period. Or my hormones having imbalance for the meds I've taken last month for acid reflux, uti and skin rashes. Or is this an early sign of pregnancy?