Most forms of contraception, in hippos or humans, is not 100 % reliable, the dose that was previously effective for Bibi did not prevent pregnancy this time. Christina Gorsuch More Quotes by Christina Gorsuch More Quotes From Christina Gorsuch We weren't planning to welcome a baby this soon, but nature found a way and ignored our calendar, most forms of contraception, in hippos or humans, is not 100 % reliable. Christina Gorsuch