[These are sample leave application for maternity leave or pregnancy leave applicable to school or college teacher. You can follow these sample as Email letter. You can modify these formats as your requirement.]

Sub: Pregnancy Leave Application

Respected Principal,

I am (name) (Job designation, like, assistant teacher) at (Institute/branch name). My family doctor recommended me to have rest before admission to the maternity hospital. Now I will be on leave for three/five weeks from the school and I request you to please approve my leave as well as assign teacher for my class during my absence. (As your requirement). At the end of my maternity leave, winter vocations may start and I will join back the school after the Winter Vocations. (Show your actual cause and situation). Thanking you.
Sincerely,

Name…

Job Designation…

Contact no…

Signature.

Sub: Application for Maternity Leave

Sir//Madam,

Respectfully stated that I, (Name), have been serving in your school for 2 years as a science teacher (Job designation). As per the discussion held with you, a month ago, my maternity days are just near now. The doctor has suggested me complete bed rest. I want to apply for a long medical leave of 2 months (As your requirement). When my delivery will be held by the grace of Allah, after 40 days, I will be back to my job. (Show your actual cause and situation). I request you to grant me leave and arrange a substitute teacher for the subject of science.

Thanking you,

Name…

Job Designation…

Contact no…

Signature.