This is Dr. David. I am reviewing your question now and will be with you momentarily.
I am sorry you are late for your period.
how old are you?
excessive stress, lack of sleep, weight loss, excessive exercise can all cause missed or delayed periods.
some young women can have irregular periods
ovarian cysts, hormone changes in the body can cause missed periods.
you may benefit from going on birth control pills which can help you stay more regular in your cycle.
no, it is not possible for you to be pregnant if you have negative urine and blood pregnancy test
pregnancies imbedded in the fallopian tubes would still cause elevated bHCG levels