Is this implantation bleeding or period?

Okay, I know it’s faint, but is this implantation bleeding?? I am 17, almost 18, and my boyfriend and I had unprotected sex. I don’t take birth control either. It was on a day that states I had a low chance of getting pregnant on..on June 9th, my partner and I flew to the mainland, arrived on the 10th. These were the last days of my fertility window and then on the 16th we had unprotected sex.

Something that NEVER happens is him cumming so fast lol, but he did and pulled out moments before cumming. He says he’s 120% sure he didn’t cum at all inside of me.

Not only did we travel this month, but I experience a lot of anxiety and emotional instability which was at its highest this month it felt.

I was supposed to begin my cycle two days ago. I was thinking it could possibly be due to the stress and traveling.

But last night I noticed I started spotting. It’s a bright red color, but after reading articles on implantation bleeding, I’m scared it could be that.

My cycle is usually always regulated, and when I start my cycle I start bleeding all at once. I never spot. My cycles have been different these past few months though. Typically I experience a cycle 26-29 days long but the cycle before the last was 31. My last cycle was 29 days. And then I have missed two days this month and am on day 33.

I also am dry on the outside, there is white or no cervical mucus when I swipe my finger inside but is wet in there.

No blood, only when I wipe.

Last night I did see a drop of blood go into the toilet and when I wiped there was more blood that looked more like a period but there’s hardly any blood. ONLY WHEN I WIPE.

SOMEONE PLEASE HELP. I need opinions and thoughts