My last period last jan. 10 then I having sex with my bf that night and also jan. 12 but we don't use any condom but he never *** inside me. And we did sex again last January 20. It was so deep and I feel the pain on my legs. After having sex with him I see my panty a little but light red blood and it last in a minute and never come back. I'm so curiose that when I touch my cervix last night I saw a little blood on my finger. And every time I go pee sometimes it's sore and color yellow. Do I have a problem or I am pregnant? Plss help