(a) A member who, prior to March 5, 1976, was employed by a public school system of this state in a capacity specified by subsection (a) of Code Section 20-2-850 may, subject to the limitations of subsection (b) and the requirements of subsection (c) of this Code section, obtain creditable service under the retirement system for any period prior to March 5, 1976, during which the member was absent from employment because of pregnancy.

(b) No creditable service shall be granted for any part of a period of absence from employment because of pregnancy when the member was on sick leave. The maximum amount of creditable service which may be obtained by a member for any one pregnancy shall be one and one-half months and the maximum amount of creditable service which may be obtained by a member for all pregnancies shall be six months.

(c) A member who desires to establish creditable service under this Code section must:

(1) Submit to the board satisfactory evidence of the period of absence from employment which qualifies for creditable service under this Code section; and

(2) Pay to the board an amount determined by the board to be sufficient to cover the full actuarial cost of granting the creditable service claimed by the member.