The concept of fecundability derives its importance for the study of human fertility
from the fact that it is one of the principal determinants of fertility and is a major standard
by which the impact of fertility regulation can be assessed; very few attempts have been
made in Bangladesh for estimating fecundability. The concept of fecundability—the monthly
probability of conception in women—is one of the principle determinants of fertility and one
of the most important parameters for studying fertility patterns in different societies.
Significance variables of the study are age at first marriage, respondent current age,
husband’s age, marital duration, use of contraceptive, spousal age difference, age at first
birth, respondent education level, husband’s education level, respondent work status,
husband’s occupation, body mass index and religion out of seventeen variables.