Plan b spotting or implantation spotting?

BACKSTORY: So long story short, it’s my first month having sex and because of this I get extremely paranoid. I had unprotected sex and I took my first plan b January 8th (even tho he pulled out long before ejaculation). I bled heavy 5 days later for 3 days like a period. The day after I stopped bleeding I had unprotected sex again and afterwards I look at my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> and it was my supposed day of ovulation (without taking into consideration taking the 1st Plan B, bc I’m unsure if it effects the OV. Date). He didn’t even end up ejaculating that night, but the following morning I took a plan b to be safe.

NOW/ SYMPTOMS: So basically I threw my hormones completely in a spiral by taking 2 Plan B’s in maybe a week and a half and 6 days after my 2nd one I began to have a slimy clear discharge w/ light blood streaks in it when I wiped. This lasted 2 1/2 days. On the third night I wiped and noticed it was now dark, thick, sticky and brown.

COULD THIS BE IMPLANTATION BLEEDING OR ARE MY HORMONES JUST OUT OF WACK? PLEASE LET ME KNOW. I AM EXTREMELY SCARED.