I'm 4 days late

Marlene

Hello ladies , so i was supposed to get my period on April 16 and I haven't yet tommorow will be 5 days yet , but I'm so nervous in a good way to take a test I don't want to get my hopes up, and then to say no I'm usually very regular on my periods. What should I do ? Should I take a test first thing in the morning ?? Or what should I do ?? Any suggestions