How To Reduce Pain In Lower Back, Stomach And Ovaries?

I somewhat lost my virginity this weekend. My hymen broke I bleed a lot. We stopped after 10 strokes. I have been in a lot of pain since then. I get sharp pains in my back kidneys stomach and ovaries. What can I do to get rid of the pain. Also I masturbated last night and I began to bleed why is that?