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I have very regular periods and got excited when it did not come. I took at hpt and it was neg. i had to go to the dr for bloodwork to check my insulin levels due to cysts from my previous cycle (thinking I had PCOS which I do not have). I thought that my dr would have done a blood preg test at this time b/c I was ttc. i went to my follow up apt yesterday and she did a urine test once again neg. I have many symptoms including: headaches, swollen/sore breast, and nausea. I do however have cramps but different than from before my period. They are almost sharp pains? Is there still a chance I can be pregnant. If so how normal is it to have a neg hpt at 5 weeks. AND how long should I wait before I test again?