A typical woman who decides to undergo in vitro fertilization (IVF) as part of her fertility treatment will typically take a set of drugs so that she can produce a lot of eggs. When these eggs are fertilized, the fertility doctor will implant them inside her body and hope that she will get pregnant. There are a few reasons for this. One, the doctor is doing this for money -- lots of it -- so that as soon as he does this, he is going to get paid, whether or not you get pregnant or give live birth. Secondly, by the time a woman in her 40s shows up at a fertility clinic she has already wasted valuable years so waiting any more is risky.
Now, doctors are finding out that the stress on the woman's body from hormones is so high that her body is simply not in its best form to implant an embryo, nurture it for 9 months, and then give birth. That is why the rates of getting pregnant are so low and even if she does get pregnant, the rates of miscarriage are high. That is why scientists now recommend choosing only those embryos that appear to be the best candidate for a fetus and then waiting a month or longer to implant it. This gives the woman a chance to cleanse her system of the dangerous drugs that she has taken for months.
Now, doctors are finding out that the stress on the woman's body from hormones is so high that her body is simply not in its best form to implant an embryo, nurture it for 9 months, and then give birth. That is why the rates of getting pregnant are so low and even if she does get pregnant, the rates of miscarriage are high. That is why scientists now recommend choosing only those embryos that appear to be the best candidate for a fetus and then waiting a month or longer to implant it. This gives the woman a chance to cleanse her system of the dangerous drugs that she has taken for months.