took plan b now im terrified

Took plan b (well a emergency contraceptive) july 12th. My period was due july 15th but i took the pill and then the next morning i was just pouring blood. I had a regular period (it was a litttleee wonky) but i did bleed blood.

Now its august and my period was due the 14th. (I have also been flying non stop this summer) so i was on my flight and noticed my discharge was creamy but had a tint of brown. Its still the same but did get darker (i can clearly tell that i have brown discharge) im absolutely terrified that this might be implantation but as u can see in the photo i did have a long ass period. Please help