My boyfriend and I were experimenting with double penetration. A regular size vibrator was in my anus and his penis was in my vagina. Instead of pulling one out while one was going in, he pushed them both together at the same time. I felt a pain in my but t. I stopped him and told him not to go so far n not together at the same time. He accidentally did it again.. I've been wiping since then and there's faint blood from my backside. Then I started bleeding from my vagina. Did something rip or tear? Do I need to see a Dr.? This happened three four days ago and its still the same.