No period

Angel • 23, Married, DD born 2/9/17, DS born 1/31/18, EDD 05/09/19

I just started a low dose bc pill in may and my period was may 9th. Now this month I never got my period at all now 2 weeks late and about to come up on placebo pills again.

Is it normal to completely miss your period on the pill? I have taken pregnancy tests just in case because I am having symptoms.