Dear fertility experts,
I am looking for a second opinion regarding the ERA test progesterone levels.
ERA test procedure: stimulation protocol (with Estrofem 1-1-2, ASS 150 1-0-0, Cyclogest 400mg)
Menstruation day: 22.2.25, ultrasound check 05.03.25, progesterone administration Cyclogest 400mg (1-0-1) 07.03.25 at 08:00 and 20:00
Biopsy on 12.03.25 at 13:50, progesterone value in blood: 42.2nmol/L (13.25 ng/ml) after 5 days of progesterone administration.
Result of ERA test blastocyte transfer 163+- 4 hours (6 days +19 hours +- 4 hours).
Transfer planned for May: Stimulation protocol (with Estrofem 1-1-2, ASA 150, progesterone 200 mg 1-1-2)
Menstruation day 5.5.25, ultrasound 16.5.25, progesterone administration 19.5.25 at 4:00 pm and 4:00 am
Transfer day 26.5.25 Progesterone value in the blood 33.9 nmol/l (10.64 ng/ml).
My question as a layman: Why is the progesterone value after 7 days of progesterone intake so low in comparison with the ERA test and progesterone value from 12.03.25?
I can't understand it: 7 days of progesterone the value should be much higher than only 10.64 ng)ml.
Thank you for your feedback and best regards,
Joana