The black soya bean milk contains phytoestrogens, and moderate consumption of black soya bean milk can increase the level of estrogen in the body, which is very helpful for the development of follicles. If the follicles are not developing well, drinking black soybean milk alone can’t play a therapeutic role. You can use injectable chorionic gonadotropin to promote the development of follicles under the guidance of a doctor, which will help a lot in relieving the poor follicle development and promote follicle development to the normal range and facilitate follicle discharge, thus improving the chances of conception. Under normal circumstances, the diameter of follicles can reach 18-25 mm. If the follicle diameter is less than 10 mm, it is considered to be a poorly developed follicle, which will have some effect on normal conception.