The hCG injection

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Ultrasound of well developed follicles.

• If the ultrasound indicates sufficient numbers of well developed follicles, the DM will order the hCG-injection to be given. This will trigger ovulation.
• As of this point, you stop with the stimulation injections of rec-FSH or hMG and - if that was the case - with the use of agonists or antagonists (suppression).
• Because hCG triggers ovulation, the pick-up will be performed 36 hours after the injection - that is just before the ovulation occurs. To ensure that the pick-up can take place during the day, the hCG injection is given during the night. The DM will decide the

  Important! Many eggs does not mean many embryo's. Click here.

  dayand hour of injection. The injection must be given under the skin (subcutaneous). 
• The next morning, a blood test is performed to see if the hCG injection has been effective.
• That same day, you must start inserting vaginal pessaries containing progesterone (see preparing for pregnancy).