Implantation is the attachment of the developing embryo to the uterine wall followed by its penetration to the maternal circulatory system to form the future placenta. 1 The embryo invades the endometrium completely only in great apes and humans. Implantation is restricted in both time and space. This implantation window begins 2-3 days after the fertilized ovum reaches

Objective asses the safety and efficacy of immediate IUD insertion following delivery of the placenta in women undergoing cesarean delivery. Study: Randomized clinical trial that included 66 women, were divided equally in two arms, where each arm included 33 patients. The first group had IUD inserted 10 min after delivery of the placenta (post placental group) and the second group had their IUD inserted at 6weeks following delivery (interval group). Results The complication rate related to post placental IUD insertion was comparable to that of interval insertion. The expulsion and displacement rates were the same in both post placental and interval groups at 6 weeks and 3 months follow up. Conclusion Post placental IUD insertion is a safe and attractive option for postpartum contraception that should be offered to all women undergoing elective cesarean section after proper counseling.