Implantation bleeding means pregnant or period? im not ttc.just had 1 unprotected sex on 12 days of my cycle fr my last period. 24 dpo negative hpt.

Unclear question: If you need to determine if you are pregnant or not, you could wait for your period. If you miss your period for 4-5 days you could do a home test; use first morning urine and follow the instructions carefully. A blood test may be positive as soon as one day after a missed period. It is late now, but i trust that you know about Plan B to prevent pregnancy following sex.