For how long can stress or worrying delay a time of year?

My period is almost two weeks unpunctually. I am sexually active, so it is possible that I could be pregnant. I took a home pregnancy assessment, and the results were gloomy. I'm thinking based on what I've read and hear from other girls that this could be stress related.

Also, I had a surgery rear legs in January, where on earth I had an ovarian (sp?) syst removed. Could this hold something to do with it? And if it is stress, for how long can stress or worrying deferral a period?
Answers:

What exactly the nipple colour?

GO TO THE DOCTOR!! If you own had an ovarian cyst removed consequently you could have PCOS (Polycystic Ovarian Syndrome) Which would motive you to miss your period and some other odd things to go on next to your body. If in certainty this is stress related then near would be no answer for your question. The individual body and motivation of stress can vary from creature to person. There is no instrument to be precise. Go to the doctor and find out for sure what is going on with your body.

Does anyone know anything more or less a hormone injection that brings back your term after having a kid?

Girl, if you are THAT worried you need this: http://www.meditationstore.net/index.php...
ASAP! I have an idea that i heard b4 that stress can affect some women close to that, but i don't know how long it can last. Go to that page i copied above and attain a stress eraser, i have it and it works miricles

What are the symtoms of need a Breast Reduction sugery?

Let's see. If it kills you later it can delay it for good.