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Infertility

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Positive Test 11 days after HCG trigger

3 replies

MayeJane4 · 28/10/2025 09:55

We are doing a natural modified FET cycle with a Gonasi 10,000iu 11 days ago and a embryo transfer 4 days ago. My test this morning is a strong positive (not as dark as the control line but not a squinter). Does anyone know what the chances are this is still the HcG trigger?

OP posts:
AmberRose26 · 28/10/2025 10:17

Gonasi has a ‘half life’ of around 30 hours .. so it will reduce by about half every 30hrs.. so say you had 10,000mg .. 30hrs later you would have 5000mg in your system .. then 30hrs after that you would have 2500mg etc so you can work out roughly when it should be 0mg .. I would say it could be, I got a faint line at 4dpt but only very faint .. but yours could be darker due to the HCG rising from pregnancy and still some of the drug in you ? Not sure if that would make it do that ? The line might fade as the drug deplets and then get darker again as your own HCG kicks in ? I guess the only way to tell would be test each day and watch the line progression ? Best of luck to you !

MayeJane4 · 28/10/2025 10:20

AmberRose26 · 28/10/2025 10:17

Gonasi has a ‘half life’ of around 30 hours .. so it will reduce by about half every 30hrs.. so say you had 10,000mg .. 30hrs later you would have 5000mg in your system .. then 30hrs after that you would have 2500mg etc so you can work out roughly when it should be 0mg .. I would say it could be, I got a faint line at 4dpt but only very faint .. but yours could be darker due to the HCG rising from pregnancy and still some of the drug in you ? Not sure if that would make it do that ? The line might fade as the drug deplets and then get darker again as your own HCG kicks in ? I guess the only way to tell would be test each day and watch the line progression ? Best of luck to you !

Thank you ❤

OP posts:
Firefly42 · 28/10/2025 16:24

Hi there.I have used Gonsai 10,000iu twice and both times it has stayed in my system for 14 days.I tested it out from transfer.Hopefully yours is a true positive.Wishing you the best of luck.x

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