Implantation

I was curious if anyone has ever experienced implantation .

I never have with my other pregnancies but it seems this is what I have going on now (very regular cycles for me typically )

I had spotting/ very light bleeding the last two days . Cramping only a little yesterday . None today . No clotting . Brown / light pink blood with mucus . My period wasn’t due for another five days.

How long do you wait to test for pregnancy?? Just looking for info or experiences so I know what to expect