I think that the brownish spotting is just related to the irregular periods you've been having.
There is no chance that you're pregnant from his penis tip touching you.
Spotting is not unusual in a woman with irregular periods. If it's prolonged, then see your doctor to help resolve it. Otherwise it will likely resolve itself. Best wishes.
There is no way it can be implantation bleeding.
Precum on the vaginal entrance with no insertion cannot cause pregnancy.
Correct. Implantation bleeding occurs about 1 week before a period is due.
I don't think there is any need for a pregnancy test. You can't be pregnant.
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