According to ncbi.nlm.nih.gov. The article entitled Late Term Elective abortion and the susceptibility to PTSD. Approximately 15,600 third trimester abortions occur every year. Of those only 2% are due to fetal abnormalities. The rest are due to delaying the decision to abort. Women who elect to have a third trimester abortion are 76.6% more likely to suffer serious consequences, including PTSD symptoms. So late term abortion are NOT that rare, only for babies that have serious problems and put the mother at greater risk for PTSD.