Determination of pregnancy duration following terminated hormonal contraception
Klinger, G.; Fritzsche, H.; Kunath, H.
Zentralblatt für Gynakologie 99(26): 1629-1632
1977
ISSN/ISBN: 0044-4197 PMID: 607701 Document Number: 121205
The duration of pregnancy was determined for 308 women who became pregnant during the 1st, 2nd, or 3rd months after discontinuing oral contraceptive (Ovosiston, Non-Ovlon) use. The data were compared to those from a control group of 43 women who had not used oral contraceptives prior to conception. An increase in the duration of pregnancy of ca 3-5 days was observed among those who became pregnant during the first 2 months after discontinuing contraceptive use. The pregnancy duration for those who became pregnant in the 3rd month after discontinuing contraceptive use was similar to that of the control group. A wider range in pregnancy duration was observed among patients who had used oral contraceptives prior to conception.