I had sex on June 3rd. I was supposed to get my period on the 6th, I began spotting, it went a little bit heavier while I slept and then went lighter, It stopped and only blood would show when I wiped and then I started spotting again. I got a test and it was negative, only a pee test. But I have been having the symptoms of pregnancy. I had cramps all over my stomach and I searched it up, It could have been implanation bleeding, this happened the night of the first sign of spotting.
I have never been late on my period and I never had it happen this way before, some of the blood was pink and brown but they're was a few clots when it was a little heavy.

Could someone give me an idea of what they think?

Implantation takes approx a week to occur after intercourse, so it could not be implantation if this was only 3 days after you had sex.

Symptoms of pregnancy and menstruation often mirror one another. The only thing you can do now is to wait to see if your next period comes. If not, take another HPT using first morning urine.

No it happened 7 days after the intercourse

I should have been more specific

It is impossible for us to tell you over the internet if you are or are not pregnant since the symptoms of menstruation and pregnancy are so similar.

Unfortunately, you are now playing the waiting game and have to wait for your next period to come.