Left pelvic pinches/slight pain, yellow tinted mucus, possibility im pregnant? [Pictures]?

I've never heard of anything like that for a women being pregnant of the start of pregnancy... A yellowish tent always means some type of infection or bacterial of some sort... Well I really shouldn't say always... But from what I know and study yellow tent colors coming out of areas could be an infection.. And also you never know who your dating or having sex with.. So I would just go checked out to tell you the truth it never hurts..