Title: Factors Affecting of Fecundability Pattern in Bangladesh: A Bivariate Analysis

The human reproduction process can be distinctively characterized by the age at which a women enters into marriage, her fecundability, frequency of coitus, use of contraceptives, number of conceptions, fetal wastages, number of live births duration of gestation and post partum amenorrhea period etc. 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 overall fecundability in 1975, 1989 and 1993–1994 were 0.06, 0.05 and 0.033 per month suggesting a declining trend in fecundability in Bangladesh over time. This decline may be mainly due to the increased use of contraceptives. But from 1996–1997 a slightly increasing trend can be noticed in the fecundability (F. Hoque et al., 2012). This study attempts to evaluate the levels, patterns, and trends of fecundability and identify the factors affecting fecundability in Bangladesh based on national surveys of Bangladesh Demographic and Health Survey (BDHS) 2011.