When do I start worrying and take a pregnancy test if not already?

[Michelle]

So I am or was I guess on birth control. There was about a week an a half I forgot to take it. From about June 25-July 8th- which according to my pack is when my period was suppose to start, it still has NOT started as of today. During that period of time I had unprotected sex about 5 times or so. The last time was last Sunday.

My last period was around June 10th. I have had some terrible headaches, had extreme fatigue.

Can I take a pregnancy test tomorrow morning?

 

[Due August 26th w/ #2]

I would wait until it's been at least 14 days since the last time you had unprotected sex to get the most accurate results.