fenugreek query

Just wondering how long it generally takes for fenugreek to start having an impact on supply. I can't have my lactation cookies at the moment as we're currently going dairy & egg free foods to try and work out DS's potential eczema trigger/s. I've noticed that my supply is a bit down; used to eat a couple of cookies for morning tea at school.

I've started taking a fenugreek & milk thistle supplement (twice a day) that I was recommended at the healthfood shop since Saturday. I'm not seeing as much an increase as I thought I would so far. It doesn't help that I'm slightly stressed about getting enough milk for the next day as I can't use my frozen EBM at the moment either.

I'm expressing 2-4 times a day (was 1-2 before having the fenugreek and getting ample); now I'm struggling to get close to the 240ml I need for the following day, generally closer to 200ml a day.
I need 120ml per bottle and DS will take 1 or 2 bottles a day.

So I'm curious (or more than curious) about how long it takes to have an impact. What's been other's experience?

When iwas taking it i noticed a difference with 48 hours from memory. I can also say though that although i noticed a differnce it wasnt like a huge differnce ykwim? I just felt 'fuller' when it was feed time (except in the evenings) and i could express slightly more.

Thanks MsB - thought that might be the case; stress at school is probably not helping things either at the moment and the fact that I'm craving dairy and choc and can't have it.

I noticed a difference within 24 hours in the same way as Mrs B26 - felt fuller at feed times - and also leaked a little bit more (I'm not usually a leaker). I was taking 2 capsules 3 times a day.