Whats your highest fertile percentage?!

Kennedy • Married to my soulmate since 7.4.2020!💍💞 We have a 4 year old son, who took a year and a half to conceive! We are expecting baby girl March 11th 2021 after 2 1/2 years of ttc with fertility treatments 💖
Mines 33%. Ive heard of some girls having lower percentages and am just curious how high, or low they can be.