Why late implantation

The implantation of the fertilized egg in the wall of the uterus is necessary for the nourishment and growth of the fetus.

Surviving pregnancies implanted only about one day earlier, on average, than the non-survivors: But the day-by-day trend was clear. If a fertilized egg implanted by the ninth day, it had only a 13 percent chance of loss. The risk rose to 26 percent if the implantation was on the tenth day, 52 percent on the eleventh day, and 82 percent thereafter. All three implantations after day 12 ended in early loss. There was no association in the NIEHS study between late implantation and the clinical miscarriages that occurred later in pregnancy.

Wilcox, M. Keep in mind, however, that there are no specific protocols regarding how many bHCG's to do and it is totally up to the medical director of your clinic. I cannot answer the question about the cramping and spotting on the 16th. If you have a luteal phase defect, then yes, stopping the supplemental hormones can lead to a miscarriage. There is no way to know if this was the reason for your loss because there are many other possibilities as well, such as an abnormal embryo.

I cannot answer your question about whether or not this pregnancy would have been healthy. The number was certainly a good and high number. What is important to keep in mind at this point: This experience showed that you can achieve pregnancy.

IVF only has the capability of giving you the opportunity to become pregnant. It cannot force a pregnancy on you. Keep in mind that the last two steps required to achieve pregnancy, embryo hatching and exiting the shell and implantation are natural steps.

We don't have the technology to make these happen. That is why I say that IVF can only give you the opportunity. The last steps are in God's hands. The fact that implantation occurred positive bHCG shows that the last two steps took place and you can do it again. Now you just have to maintain your hope, diligence and savvy. You've gotten this close. After all that you have been through, why would you not keep trying?

Hopefully, the next one will be a "home run" or "touchdown" depending on which sport you prefer. But other than that, the timing of implantation isn't under anyone's control. Beyond having an in vitro fertilization procedure in which a fertilized egg is transferred directly into the uterus, there is no way to speed up an egg's trip down the fallopian tubes to the uterus.

And once the egg is in the uterus whether through IVF or not , there is no way to force it to embed in the uterine lining. There is no evidence that late implantation by itself causes miscarriage. However, the later the egg implants, the more likely miscarriage is to occur. If you have menstrual irregularities or if you have been struggling to conceive, talk to your doctor.

Although there is no test to determine when embryos implant or why late implantation occurs, other tests may uncover the reasons behind impaired fertility. Get diet and wellness tips delivered to your inbox. A review of mechanisms of implantation. Dev Reprod. Time of implantation of the conceptus and loss of pregnancy. N Engl J Med.

The association of maternal factors with delayed implantation and the initial rise of urinary human chorionic gonadotrophin. Human Reprod. Your Privacy Rights. To change or withdraw your consent choices for VerywellFamily. At any time, you can update your settings through the "EU Privacy" link at the bottom of any page. These choices will be signaled globally to our partners and will not affect browsing data. We and our partners process data to: Actively scan device characteristics for identification.

I Accept Show Purposes. If you have had several miscarriages, it is unlikely that late implantation is the sole cause. Was this page helpful? Thanks for your feedback!