Antagonist Protocol Calendar
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Day 1
Start of menstrual period
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Day-2
- Transvaginal ultrasound scan
- Blood test
- Start daily FSH injection
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Day-7
- Transvaginal ultrasound scan for follicular size
- Adjust dosage of FSH injection
- Start daily GnRH antagonist injection daily when leading follicle reaches 17mm
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Day-10
Transvaginal ultrasound scan for follicular size
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Day-11
hCG injection to trigger ovulation -
Day-13
Egg pick up and sperm collection
Start vaginal progesterone pessary
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Day-16
Day 3 embryo transfer
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Day-18
Day 5 blastocyst transfer
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Day-20
Follow up and luteal support
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Day-24
Follow up and luteal support
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Day-28
Follow up and pregnancy test
If any of the scheduled visits to the Clinic falls on a Sunday or Public Holiday, please call us for advice on how to proceed.
Resources & Guides
For more information and resources, you may refer to the guides available:
For guides in other languages, please refer here:
An RTAC-Accredited Fertility Centre