Is it possible to have twins if you are already prego?

Why is there blood when you blow your nose? Does the radius produce red blood cells? Can you eat cooked spinach after diarrhea? Will it hurt you to take diet pills while you take high blood pressure medicine? What should you use towels or tampons when you are having a period? What is the normal count of glocuse? What is treatment for pinched nerve in thumb? What type of leukemia did Mary Travers have? How long does the NuvaRing stop ovulation? Is Steptococcus pneumonia Autotrph or Hetroph? Osteogenesis imperfecta? Why do long distance runners have more mitochondria and produce more ATP than people who do not exercise? Are fever blister in the lytic or lysogenic cycle? Can Dilaudid tabs break down for injection? What rhymes with vomit? How is the skeleton of a human being well adapted to movement? What type of muscles move food through digestive system? Do pirates get sea sick? Is 114 over 67 good blood pressure for a twenty-one year old female? What causes a lump on the perineum?