Good Evening I was supposed to get period February 1 my last period was Jan 1 I’m normally pretty regular and periods last 4 days however I am 12 days late for period and 2 days ago I started bleeding but it’s not heavy at all and a very light pink it’s not enough to fill a pad or anything any ideas if it could be implantation bleeding it’s very different from past periods and only lasted about 2 1/2 days!!! I took pregnancy test couple days ago and it was negative this was before I started light bleeding