What parents need to know. Parents need to know that this biography of one of America's most famous authors, Mark Twain, is told in the voice of one of his most famous characters, Huck Finn. Folksy language, imperfect grammar, and creative spellings are all part of that voice.
In the first few weeks after implantation hCG levels double every 48-72 hours. This means that the level of hCG in pregnant women goes from nearly nothing to a lot in just a few days time. At 7-10 days after ovulation, a pregnant womanâs hCG levels will be up to 50 mIU/ml. Find a pregnancy test that can detect a level as low as 25mIU/ml. You can begin to test at 7-10 days past ovulation.
Once fertilization occurs, the fertilized egg will travel the remaining way through the Fallopian tube to the uterus. Implantation is when the fertilized egg burrows into the uterine lining and begins to grow. Implantation usually occurs between eight and ten days after the egg is fertilized. So if you have a twenty-eight-day menstrual cycle and ovulate on the 14th day, implantation would occur somewhere between day twenty-two and twenty-four of your cycle. If your cycle is longer than that, implantation would occur between two and four days before you would expect your next menstrual period.