If your period was 2 days late after it has been like clockwork the past 6 months since it returned post partem, would you take a pregnancy test?

I also had a tubal ligation after my 2nd DS was born a year ago.

I feel like this is a ridiulous thing to worry about since I did have a tubal! But... I am 2 days late. And I am never late unless a baby is cooking...