What Does The Mucus Look Like Before Your Period Am I Pregnant? Why I Have Clear Mucus?

Am i pregnant? why i have clear mucus? - what does the mucus look like before your period

I tested three times at home and the prognosis is positive, two lines are clear, I am 100% sure that I am pregnant? But why should I clear mucus at this time is similar to mucus, before the time is that normal? effective if I am pregnant, should now be 6 weeks.