Are herbs effective for family planning?

I am 45 years old and for five years I have been using herbs for family planning and they have worked. Other women I have sold them to have also been helped. Should I continue?
Zura

Dear Zura,
It is true that many drugs are made from herbs and that herbs can be effective in treating humans but unfortunately for many, the appropriate dosage, purity, effectiveness, contents, or even short or long-term side effects may never be known.
A woman’s fertility largely depends on her age. Women are born with all the eggs they will ever have but as they age their eggs diminish in quantity and quality hence negating fertility.
A woman’s fertility starts to decline in her early 30s, with the decline speeding up after 35.
It is likely that you are not getting pregnant because of diminished fertility rather than the effectiveness of the herb in family planning. This has also been helped by having sex less often as happens when a woman nears or gets into menopause.