When should I take a pregnancy test?

I'd test now, just to be sure. Then test a week later if you get a negative. If you're feeling symtoms, usually, it's a good indication that the hcg levels in your blood are high enough to be detected by a hpt. If you've just come off the pill though, it's very possible that a missed period is just your body readjusting hormone levels, so don't be too disappointed if it is negative.