While implantation bleeding is possible you wouldn't get it now if you are indeed pg. You don't get a positive HPT until after the egg has implanted because your HCG levels don't start to rise until after implantation has happened (causing a + HPT test).
With that said, if you are pg you may just be spotting because your cervix is irritated. It's really sensitive now but my concern is the light +. I would definitely make an appointment to get bloodwork done.
You seem to be getting a lot of faint positives on hpt's. You have posted about this before. You should make a doctors appointment to check your blood levels. That will give you a definite answer.
Implantation bleeding is possible while pregnant. It is spotting but not a heavy bleed. Hope this helps.
i forgot to mention while i was in the bathroom i had taken another pregnancy test and i had put it down to clean myself and when i ssw spotting i kinda forgot about the test but remembered a few mins later and when i see it , it also came up faint positive it was a first response test .im really confused can u actually have spotting while your pregnant .