Please help!!

❤ Stephanie • Just a small town girl trying to make a living. Currently in a long-term relationship with the greatest guy ever!
So I got my period the 20th of this month, which was a week early. I was rly heavy and then the next day it was hardly there. Just light spotting for the next 2 days then it was gone. Well yesterday I went to the restroom and when I was finished I noticed that there was some blood on my tp. So I put in a tampon thinking my period was playing games with me (considering in irregular) the next time I went to the restroom there was nothing on my tampon. And I've noticed that here lately I've been eating a lot more than usual, and today my hands and feet are swollen. Even my lips feel swollen... my body aches and I'm super tired... my SO and I had unprotected sex almost 3 weeks ago and he came in me. I'm not on birth control, and I was late taking the plan B the next day...