Last normal period 20th - 24th Jan

Had unprotected sex on 25th and he came in me

I took an emergency pill right after

Feb 1st - 3rd, brown discharge

Feb 21st, period date, missed it, 10 days late.

Today March 3rd, I woke up with some bleeding when I put my fingers down to check CM

Is this my period or could this be implantation bleeding?

It's not light as it looks in the pic...

IM POSTING this right after so I haven't seen any clots yet, but the bleeding is continuous - it's not going away after a wipe and I'm having some discomfort in the abdomen, like cramps