Missed Period

Nina

Soo .. I am 16 days late for my cycle, i missed the whole month of october . and i have been cramping but no period at all and i have been more tired than normal and more aggravated than normal lol. Slightly Nauseous here and there .. But im a little scared, i took a test LAST NIGHT ( dont know if it was the right timing ) and it was negative , thought i seen a very faint line though .. Should i take a few more ? Earlier in the day ? Or just wait to see if i come on my next cycle ?