Hi, according to glow I’m 18dpo , 4 days late.period was supposed to arrive on 25th.

On 26th morning I took a test which was negative in the morning, then I had light brown spotting for about 3/4 hours, nothing since, even when I wipe there’s absolutely nothing. Could it be implantation bleeding the day after af was supposed to be due? I never get my period later than 2 days, it’s been 4 now.

Did this happen to someone? What did it turned out to be?

Thank you