This is my first time ever asking for advice over the internet, so if I give out too much information or do something wrong, I apologize in advanced.

I am a 20 year old female who has yet to have intercourse, but I have fooled around twice before, both times with different people and very far apart (first time I was 16, second time was very recent). I have never been on birth control for and over the past few years, my periods started becoming very regular (when I was younger, they were all over the place).

The last time I got my period was on the 27th of July, which is a normal, if not exact, time for me to get it. My periods are usually very light (except on the first day) and only seem to last 3-5 days. It has always been this way. Just today, while going to the bathroom, I noticed blood on the toilet paper and a little within the toilet. It was red in color and very light/liquidy. I have yet to experience any cramping like I normally would when getting my period.

Well, last week, I had a few guy friends come to stay at my house for a week. They all live in different states, but we've known each other for quite sometime and get together a few times a year. One of them I am very friendly with, I guess you could say we have a "thing." Towards the end of the week (5th-7th) we started getting a bit sexual. He fingered (for lack of better term) me and I "preformed" oral sex on him, but did not "swallow" or have his semen anywhere near my vagina (sorry if this is too much information). Now, I know some girls have their hymen broken when fingered, but he did this to me a week ago and I'm just bleeding now, so is that possible?

Either that, or I'm getting my period a week and a half early, which is weird for me. I usually start off with brownish-red spotting, but this was just blood.

Also, I don't see any blood in my underwear, so I'm starting to think it might have happened during urination. If that was the case, how worried should I be about that? The thought scares me.

Again, I'm sorry if I used too much graphic language or posted in the wrong forum. I'm just a bit worried, so any sort of information would help. Thank you!