15 days late on my period. i get dizzy when i stand up to quick. taken 2 test both neg. first one taken 3 days missed 2nd one taken 1 1/2 weeks?

Blood test for HCG: If you had sex since your last period, you may wish to get a blood test for HCG level to settle the issue of pregnancy. Your getting dizzy may be due to inadequate intake of water. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Drink enough water daily so that your urine is mostly colorless. Practice safe sex. Get HPV vaccine.