White discharge

I had unprotected  sex last Monday. Lastly I been have thick white discharge (no itching or burning or worried smells) and mid cramps and I been really tried. I don't know if it's cause I been working more. I got off depo n October n I had a 2-3 week period after from the ending of November to the middle of December. N this month I have not had no bleeding. Can somebody tell me what's going on ??