No. Fertility is created by Allah to whom He wants and it is never a matter of superiority. Superiority is based on Taqwa (Piousness). Wife of Prophet Ebrahim and wife of Prophet Zakaria were not fertile during long period of their life. In Quran we read :ويجعل من يشاء عقيما (Allah makes whom He wants not fertile.) (Sura 42, Verse 50).
When it is from Allah, then there is no question of inferiority.