So, I'm only 16 years old, and recently, my period ended on the 3rd of May. Then on the 10th of May, exactly one week after, I suddenly had light spotting, which lasted only a day. It never happened to me before, so I got quite a shock. Then on the 13th of May, this huge black thing came out of me, and my period isn't due in another week or two. The black thing looked like skin, or lining from the uterus when I washed it away, it was really big though, it looked like bulgy uterus lining. It left no stain on my panties, which left me quite puzzled. It did seem like it was blood but it dried up so quickly!! There were dried flakes of it around the sides of my panties. The next day, another one came out, but much smaller this round. I'm really confused as to what it is. Is it a possible blood clot? Am I in trouble? On May the 4th, one day after my period ended, me and my bfs private parts touched each other, but his was not erect and its skin rubbed my there a few times, fooling around. That was it. After that there was nothing. I really want to get this clarified cuz I'm scared to my wits that I may be pregnant, and if I'm not, will my period continue as normal this month?  Thank you so much ><