Please help.. Scared

Long story so bear w me..

On sept 4 I took plan b 24 hours later after unprotected sex and he came in me.. (That was 4th ovulating).4 days after I took plan b, my BF and I had unprotected sex (multiple times) over the course of 30-35 min... He peed before our first intercourse, but each intercourse lasted 3-5 min, took a break(1-2min) & did it again and so on,.. We only did that 3 times over that 30" course...

He never came in me

Or even when he pulled out. Fast forward a week later (which is today) I have a thick yellowish clumpy discharge and my expected period

Is 3 days.. Took a test early but it says neg. should I be worried that I might be regnant due to my circumstances or I'm ok? Did the pill stopped my

Ovulation during when I'm

Ovulating? I'm so worried I need these questions answered. Thank you