Three girls were admitted to the health facilities after delivering babies while a boy from Rangwe sat for the papers in the hospital as he was unwell.
The girls from Rachuonyo North, Ndhiwa and Rangwe sub-counties delivered their babies through cesarean sections as the one from Ndhiwa reportedly gave birth just hours before the exams started.
Homa bay County Commissioner Moses Lilan said that arrangements had been put in place to enable sick candidates sit the examination in health facilities.
According to the County Director of Education Fredrick Kiiru, pregnancy or delivery will not deter any girl in the county from sitting the examination.
Lilan said the government had put in place measures to ensure learners in six islands in the county sat the examination at the right time.
The measures include installing an examination papers cargo container at Mfangano, which is the largest island in the county.
The container also serves schools in other islands such as Remba, Ringiti and Takawiri in Mbita Sub-County.
Schools in Rusinga Island are being served by a container in Mbita town while in Suba sub-County, a container has been placed at Sindo Township to serve Kiwa Island.
In addition, he said that the examination kicked off without hitches in all the 1058 centres in the county with a total of 35,672 candidates comprising 18,050 boys and 17, 622 girls writing the exam.
In the neighbouring Migori County, some 29787 learners sat for the exam among them 108 pregnant girls who are candidates for KCPE and KCSE exams.
Suna East Deputy County Commissioner Kibet Maguta, who dispatched day-one exams, said enough security had been provided to all the 825 examination centres in the county.
He also said all-weather government vehicles were being used to deliver exams to all examination centres as the rainy season begins.