I have been using cinnamon as a contraceptive for about 3months, last month i di not get my periods i bought pregnancy test yesterday but its negative

If both are fertile,: If both the man and woman are fertile, she should become pregnant soon... as in 1-9 months or so. Neither cinnamon powder, cinnamon sticks, cinnamon buns, cinnamon gum, or other cinnamon products prevent pregnancy. That said, using cinnamon-flavored lubricant with a condom does prevent pregnancy, as well as using cinnamon-flavored condoms (if they are being sold anywhere).