😩😣Antibiotics and hormones

So I have been on antibiotics for a few days, and I was also in the end if PMS when I started them, and now about 3 days after starting it I feel emotional again like on PMS, could it be the antibiotics? Or the fact I haven't been sleeping well? I don't know what to think, I'm 16 and very new to the PMS and it bothers me, advice? Also I started my period already