I think you shouldn't deny that 'soon-to-be-bud' a chance at life. I think you should wait it out a while to decide its fate,..... but saying that....im pretty steamed.
depends on factors like, how many seedlings you've got.
if you have got an excessive amount then kill it, but if say you had 2 or 3 then they all might be male and the one you killed a fe-male...... then ude be pissed off.