IVF and breastfeeding study... -

Hi all, am really glad I found this thread!
I am feeding our 21 month old mostly at sleep times (!), and plan to do a FET next cycle. My FS recommends Hormone Replacement Therapy. I'll be taking similar hormones to you, Marcellus. I'll be on estrogen, estradiol (3-5 days at 20 mg)and progesterone. I've spent ages researching this and it appears safe for my toddler other than that the estrogen/estradiol may decrease or stop my breastmilk production. I'd be really interested to know if this has happened to you, Marcellus, and if you're regime included the estradiol.
Mylita, re. IVF drugs, check out Dr Thomas Hale's website (Medications and Mother's Milk). The injectable drugs are often poorly bioavailable. Some are also molecularly way too large to have much chance of passing into breastmilk. For example, anything over 1,000 molecular weight has difficulty passing into breastmilk. The molecular size of Pregnyl is 47, 000 and it's not orally bioavailable (it's destroyed in the gut) which is why it's injected. Similarly Puregon's molecular weight is 30, 000 and it too is not orally bioavailable. I found lots of help from the Women's and Children's Drug Information Centre at King Edward Hospital (Western Australia (08) 9430 2723).
Best wishes to you all, Christina