Personally, I don’t feel this is the best idea and I’ll explain why, but of course, we respect whatever decision you choose.
The main reason why it is not advisable to do the hCG diet while actively breastfeeding is because when a person is losing fat, releasing heavy metals from your fat stores that may be stored for a long period of years (esp. during a time of rapid weight loss) is likely to occur. Heavy metals like mercury and such are stored in fat, that’s a fact, and many women have higher levels of this than they should in their system – this can definitely get into milk supply and that could be very dangerous & damaging to such a small baby.
If you look at this reference below, it is referring to the potential of much higher toxin release into breast milk at only a little over 1 lb of weight loss a week, whereas on hCG you may be losing much more than that per week.
I too considered this as I discovered hCG while I was still breastfeeding. The choices for me at that point were either to wait till I finished breastfeeding, or wean him earlier than I had planned. My son was 14 months already at the time, and for me, I decided I need to wean him as I felt my own health couldn’t wait much longer to be addressed and the hCG protocol was the first step for me. For other women, you may be able to put off the diet for a few more months or several months.
I know it really is an emotional thing, it was quite bittersweet to wean him as I did not get to as long as I had hoped, but in the end for our family it was the right decision.
I hope this helps you decide what’s best for you.