The dosage does not seem right at all BUT I do not know if maybe dose different when pregnant as I have not known people to take it while preg.

I took it with DS1 and I was on Max dose for weeks and it did bugger all, I never noticed and increase in supply but I did with herbal things which cant be taken while preg, (i took blessed thistle and alflafa from 5 weeks until 9 months and stopped at preg)

Good luck. I would ring again and ask to speak to Rodney himself.