Objective
To analyze the determinants of emergency contraception non-use among women in unplanned and ambivalent pregnancies.
Method
Cross-sectional study with a probabilistic sample of 366 pregnant women from 12 primary health care units in the city of São Paulo, Brazil. A multinomial logistic regression was performed, comparing three groups: women who used emergency contraception to prevent ongoing pregnancies (reference); women who made no use of emergency contraception, but used other contraceptive methods; and women who made no use of any contraceptive methods at all.
Results
Cohabitation with a partner was the common determinant of emergency contraception non-use. No pregnancy risk awareness, ambivalent pregnancies and no previous use of emergency contraception also contributed to emergency contraception non-use.
Conclusion
Apart from what is pointed out in the literature, knowledge of emergency contraception and the fertile period were not associated to its use.
Pregnancy unplanned; Contraceptives postcoital; Family planning; Reproductive health; Primary health care