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Conception

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Anyone on levothyroxine (thyroid medication) -did it lengthen your luteal phase?

1 reply

Tryingtokeepcalm2021 · 02/02/2021 20:06

Hi everyone,

I came off the pill 9 months ago and struggled to get a luteal phase of more than 10 days, sometimes it dipped to 8 - so I went to my doctor. They discovered I had a 4.3 TSH level (thyroid indicator) and while that is considered borderline normal, it's supposed to be under 2 for conception. Thyroid issues can create a luteal phase defect and my doctor says the medication should lengthen it.

So I've been on levothyroxine 50mg (thyroid medication) for 8 weeks now. My TSH is now down to 1.64 as of last week which is good.

But during that time, my luteal phase dipped to 8 in the first cycle (with spotting from 5DPO which was a day earlier than I'd had before) and this last cycle I got spotting on 6DPO and AF has arrived on 7DPO - making my luteal phase now 6!

I feel really gutted as the medication seems to have done the opposite and given me the shortest luteal phase I've had since I started tracking in August. I think my luteal phase might be related to something else - I've also had hormonal acne since coming off the pill so I think it's more than my thyroid out of wack, but my GP says there's nothing they can do.s

Has anyone experienced this? Or had a positive experience on levothyroxine - perhaps I just need to be patience and it needed to get worse before it gets better?!

OP posts:
TTCThyroid2021 · 19/08/2021 16:31

Hi tryingtokeepcalm,
I'm sorry to hear your problems with Levothyroxine. Has this improved over the last few months? I've just been put on 25mg after testing my TSH which was 7.8! TTC for almost a year so hoping this helps.

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