I have unprotected sex on the 31st and a few days later I had what seemed to look like "spotting" that happened once or twice but only when I wiped,Then on the 1st I thought I started my period but was a lot lighter than normal and is brown and dark red I took a pregnancy test on the 3rd which came back negative! Feels like I have a few pregnancy symptoms, and really bad cramping, the answer I need to know has any mother had a fairly heavy implantation bleeding but lighter than a period?
Also when should I take another test? And what are the chances that I am pregnant because its strange but feels like a I really am!
NEED ANSWERS SOON AS POSSIBLE, NEED HELP!!
THANK YOU!

Answer, you are testing way too early, if you don't get your period that comes in about a month or a few weeks, then you test, You will not show post withni a week or two of having sex.

You need to wait till time for your NEXT period and if you miss it, then test first thing in the morning

I forgot to mention my period was due the 28th but I'm guessing that is still to early even those I was 4 days late? Thank you.

Answer, you are testing way too early, if you don't get your period that comes in about a month or a few weeks, then you test, You will not show post withni a week or two of having sex.

You need to wait till time for your NEXT period and if you miss it, then test first thing in the morning

I forgot to mention my period was due the 28th but I'm guessing that is still to early even those I was 4 days late? Thank you