check out www.drjacknewman.com online - he's a pro with breastfeeding. I think I've read that you should take blessed thistle along with the fenugreek for best results. Good luck! Here's an excerpt:
Fenugreek: 3 capsules 3 times a day
Blessed Thistle: 3 capsules 3 times a day, or 20 drops of the tincture 3 times a day
The tincture container states that blessed thistle should not be taken by nursing mothers, presumably because of the tiny amount of alcohol the mother would get. There are some preparations of both herbs that are labelled “not for use by nursing mothers”. Don’t worry about this; these herbs are safe for the mother to take because so little gets into the milk. Teas also seem to work, but to take enough to make a difference, you will be drinking tea all day and night, since the amount of the herbs you get is much less.
Fenugreek and blessed thistle seem to work better if you take both, not just one or the other.
Fenugreek and blessed thistle work quickly. If they do work, you will usually notice a difference within 12- 24 hours of starting taking them. If not, they probably won’t work.
Fenugreek is often sold as a combination with thyme. Do not buy this combination, but try to get the capsules with fenugreek alone.
Herbal remedies are not standardized, so though the bottle of fenugreek, for example, may say that it contains 405, 505, 605 or 705 mg/capsule, we do not really know how much of the active ingredient you are taking. Fenugreek has a distinct smell. If you cannot smell it on your skin, you are not taking enough, even if you are taking three capsules three times a day. Ensure that the fenugreek is very fresh and gives off a strong odour when you open the container
Fenugreek and blessed thistle seem also to work better in the first few weeks than later. In fact they tend to work best in the first week. Domperidone works better after the first few weeks. (See information sheets Domperidone, Starting and Domperidone, Stopping for more information.)
You can take fenugreek and blessed thistle together with domperidone if you feel they are helping. If you take both the herbs and domperidone, take domperidone 3 tablets three times a day at the same time as you take the herbs.
If you are ready to stop fenugreek and blessed thistle, you can probably stop suddenly, or wean off over a week or so.
Fenugreek does not cause low blood sugar. Where this rumour came from is unknown.