Question: TMI

For the past couple weeks(2+) my "girls" have been tender(all the time) to sore( at times) and also my nipples. I am due for AF in 3 days. Since Monday my girls have been very sore(I'm thinking because of AF arrivingshortly)  but last night I thought I got my period, I wiped and there was blood so I did my normal insert of tampon and went to bed. I woke up this morning and the tampon had no blood on it😳 I'm so friggin confused as to what happened lol