Bleeding after sex?

So I’m very early. I am not even due to start my period for 3 days but I had a feeling I ovulated a few days earlier so I took a test this morning and it was a faint positive, but definitely there.

My boyfriend and I had sex a few hours after I tested and I had the slightest tinge of pink when I wiped after but barely even noticeable.

A few hours later I started spotting heavier but it was bright red which scared me. Since then I’ve been spotting/light bleeding bright red. (not enough to fill a pad, but enough every time I wipe)

Is this just from having sex? Maybe it irritated my cervix cause it was deep semi rough? Or am I having a miscarriage/chemical?

I know you can’t really tell me what it is but I was wondering if anyone else went through this and how did it turn out? This pregnancy wasn’t planned but it’s very much wanted and I just need some hope or something.