Whats wrong with me??? :(

La
Didn't get my period at all this month over 2wks late negative urin test doc didn't want to give me a blood test told me wait another week & take a home pregnancy test, if negative again they want me to take something called provera to bring on my period. This never happened to me before. WHATS WRONG WITH ME? COULD I BE PREGNANT? AN ITS JUST NOT SHOWING UP YET.should I go see another obgyn an ask for blood test, PLZ LADIES ADVICE WOULD BE APPRECIATED. TY.