(a) Abortions could happen spontaneously too.
(b) Infertility is defined as the inability to produce a viable offspring and is always due to abnormalities/defects in the female partner.
Infertility is defined as the inability of the couple to produce baby even after unprotected coitus. It might occur due to abnormalities/defects in either male or female or both.
(c) Complete lactation could help as a natural method of contraception.
Complete lactation or lactational amenorrhea is a natural method of contraception. However, it is limited till lactation period, which continues till six months after parturition.
(d) Creating awareness about sex related aspects is an effective method to improve reproductive health of the people.