Is it a possibility?

makayla& • 🦄🌈❤ insta :makaylaaaa2261 Snapchat:mjphill12345

So I had my period 2 & half weeks ago... & on Jan 8th I had sex unprotected. Jan 14th i started light bleeding when I wipe ... small cramps. I already had my period in the beginning the month. So should I be worry? Can It be implantation ? Or just having another period again?