Omg I really need to know what this way,im worried!?

O.k, about 3 night ago,me and my boyfriend were going to enjoy sex. We realised we were out of protection, so we purely ''fooled around'' [masturbation etc] and i'd only have sex on other nights near him twice. He got somewhat rough whilst pleasuring me, and the following morning I noticed brown discharge within my underwear. I thought i was getting my extent a little precipitate so i put on a pantyliner. However, no more of the discharge came, nor did any signs of a time. It's been 2 days since that happen, and still no period. I surmise i would ususally get one around the 16/17th [it is currently the 13th]. Was the brown discharge anything i should verbs about, or be it just signs of pre mentruation? Please hand over me any thoughts you have x x x
Answers:

Is it dodgy, over a period of time, to thieve prenatal vitamins when you aren't pregnant?

I don't think you own anything to worry in the order of. It could have simply been because he be being rough and he may own given you a slight tear. Don't verbs too much about it.

How can u make clear to if someone drugged u or someone else?

I wouldnt worry...resembling the other answer said, you probably were somewhat too rough and got a small rip. :)