Embryos that are no longer needed are simply removed from the freezer and allowed to perish naturally in warmer temperatures or water.Because of this, pregnancy is calculated from the first day of your last menstrual period (or LMP). In both cases, you and your partner/donor will need to give your consent in writing, Your clinic should provide the relevant forms.ĭonate them to someone else: Give someone the most precious gift of all by donating your embryos to someone in need.įind out more about donating your embryosĭonate them to research: Research on eggs, sperm and embryos is invaluable in helping scientists to understand causes of infertility and develop new treatments.ĭonate them to training: Trainee embryologists need embryos to practice techniques, such as removing cells from embryos and mastering the freezing/thawing process.ĭiscard them: Some people prefer to discard their embryos. You can either discard them or donate them (to someone else or for use in research or training). What if I don’t use my embryos or I have some left over? When the timing’s right, the clinic’s embryologist (embryo specialist) will thaw your embryos and usually transfer one embryo to your womb (three embryos can be transferred in exceptional circumstances if you’re over 40). You are then given medication to help prepare the womb lining for an embryo. If your periods aren’t regular, or you don’t have them at all, your doctor may suggest using drugs to suppress your natural cycle and trigger a ‘false’ period. Urine or blood tests may be used to check when you’re ovulating (releasing an egg), which indicates that the lining of your womb will be ready to receive the embryo. In this case, ultrasound scans may be used to check the lining of your womb. If your periods are regular, your doctor may suggest having the embryo transferred to your womb with no fertility drugs. The initial steps depend on whether you are ovulating regularly. The exact procedure for using your frozen embryos varies depending on your personal circumstances and your clinic. Read more information for Transsexual and non binary people seeking treatment.įind out more about preserving your fertility Both treatments can lead to the partial or total loss of your fertility. If you're a female transitioning to a male, you may want to preserve your fertility before you start hormone therapy or have reconstructive surgery.You are at risk of injury or death (for example you’re a member of the Armed Forces who is being deployed to a war zone) and you want to create and freeze embryos with your partner.Please note that, depending on where you live, you may not be able to have embryo freezing on the NHS. You have a condition, or are facing medical treatment for a condition, that might affect your fertility (embryo freezing is currently the most effective way for women to preserve their fertility, although it is possible to freeze eggs).You should be offered the opportunity to have any suitable embryos frozen to use later. Your treatment needs to be cancelled after egg collection (for example, if you over respond to fertility drugs).You want the option of using your embryos in the future (rather than having a further fresh IVF or ICSI cycle).You may wish to consider freezing your embryos if:
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