Very low density lipoproteins are approximately 25-90 nanometers in size, and have a density of ~0.98. VLDL contains 5-12% protein, 50-55% triglycerides, 18-20% phospholipids, 12-15% cholesteryl esters and 8-10% cholesterol.
6 oz, or 3/4 of a large baby bottle
If you have had sex you should get checked. but some peoples periods arent regular all the time