Okay, my last period was on Sept. 15, 2009. It is now December 18, 2009 and I have missed my last 3 periods. I have gone for blood tests and urine tests for pregnancy and every single one has come back negative. I'm so confused! I mean I've been getting pregnancy symptoms like headaches, nausea, movements in my lower abdomin, I have lower back pain, ummm... Idk... I just want to know what's going on... HELP ME!

This is something that you have to discuss with your dr. after so many negative tests, I'd lean towards thinking you are most likely not pregnant. Unfortunately "pregnancy symptoms" are the same as symptoms of many other things. It's very important that you talk to your dr and have them help you figure out what is going on with your body.

Has your doctor done an ultrasound? I would think that would be the next step, especially with all these symptoms. It could be something serious and it's time to find out.

Insist that your doctor do more tests to get to the bottom of this. Something is definitely going on.

Has your doctor checked you for other issues like pcos?

You could just not be producing the pregnancy hormone like most women.

You could just not be producing the pregnancy hormone like most women.

Just fyi, this post was written in 2009. If the OP was pregnant (she never came back to tell us) the baby would be 4 years old by now.