Late period

Ashley • I'm 29 and my husband and I have been married since October 2014! We now have 2 children a 2 year old and a 5 month old. This app helped us get pregnant both times!
My period is 2 days late! When should I take a pregnancy test? :)
I'm new at this! I hope this isn't a stupid question. But 2 months ago I was 5 days late and took 3 tests. They were all negative!