I figured that's what you meant
Unfortunately...you have two options. No more than two.
#1 take a test
#2 wait and see if AF shows
If you are 3 days, well now 4 days late I'd say it's time to test.
Stress can delay your period but as it was put to me by my doctor, it only delays your period because it delays ovulation. So if you weren't feeling this stress at the time of ovulation then chances are that is not what is causing your period to be late. Meaning if you ovulated on time, you should get your period on time.
It really does sound like it's time to test.
I read your other posts from back in May. I am now going to enter the realm of "totally none of my business"

If you are pregnant, is it the same father as the one before?
I don't tell many people this story and I've never told anyone on this board but I want to share it with you.
The person I am today is no where close to the person I was 5 years ago. I dated any man that would have me. I was so desperate to have a boyfriend that I didn't care who it was. I dated a man who stole from me and my roomates, a man who had a child with one of my co-workers who didn't share that info with me because he thought it was funny, a man who turned out to be married, a man who one day I find out has a serious girlfriend and she just delivered their baby, it goes on and on and trust me it doesn't get any prettier. I lived my life in a way that I knew was wrong. I knew I deserved better but I just couldn't make myself leave these men. The worst part...they all left me...I never dumped them.
Two years ago...on Thanksgiving day I decided I'd had enough. I was at my lowest point. I knew I would never be happy, no one would ever love me the way I wanted...both my sisters had just moved away so our normally big Thanksgiving Day celebration was just sad and depressing. And they guy I was "dating" at the time hadn't called me in a week. I knew that was over. I was finished with it all. I left my parents and cried the entire drive to my apartment. I had no money, lived in a crappy one bedroom apartment, and was about as lonely as a person can get. Totally depressed.
Three days later my friend invited me to a "thanksgiving" get together at her house. I met my husband that day
Two months after meeting and becoming friends we had our first day, two months after that we got engaged, 7 months after that we got married
The next Thanksgiving...I was standing in my house making a huge dinner for our families. I was the happiest I've ever been.
My husband is the most honorable, respectable man I've ever met. My family LOVES him. He's perfect. He has a wonderful career and is very successful. We have a beautiful home, and the happiest life I could have ever dreamed of.
If you aren't pregnant, and even if you are....please consider your current situation.

I'll be checking in to see how it goes.
Best of luck.