Yes, I would have. If it has been over 72 hours since you had unprotected sex, you can still find other forms of emergency contraceptives that work after longer periods of time. Honestly though, the chances of you getting pregnant from precum are small- still there though.
I would. sorry. But in truth, pre ejaculate can impregnate you. But in looking at the date, too much time has passed now. So, let's just cross our fingers and hope. Also, get an std screening to be on the safe side. good luck hon