Am I pregnant? I am supposed to have my period this week or last week. I am havin bad cramps and light headaches. Sometimes I feel nauseous. I am underweight for my age/height. Yesterday I had pinkish brown discharge. Today I had a small bit of blood and

As . As doctors, the first thing we do when we hear that a young, fertile woman is having a missed period or abnormal spotting, we check a pregnancy test. You can either take a home pregnancy test as long as it has been 5- 6 weeks since your last normal period, or you can go see your doctor and they can test you. A home pregnancy test is 97% accurate if taken a week or more after the missed period. A blood test can tell if you are pregnant as soon as 7 days after conception and a doctor's urine pregnancy test can tell if you are pregnant around when you next period should come. There are other reasons besides pregnancy that can cause a woman to miss a period such as: stress, diet, excessive exercise or a hormone imbalance such as with a thyroid disorder or polycystic ovarian syndrome. You being underweight could affect your period. If you are not pregnant and are still worried about an irregular cycle, give your doctor a call. Your doctor will take a thorough history and physical and may run some tests to find out why your period is irregular. Good luck!