Will cytotec tablets be effective after seven months of pregnancy?

Answer 1

 but is it possible to have an abortion with cytotec if 7 mos pregnant with low lying placenta

Answer 2

At 7 months pregnant, any form of abortion is not legal. Cytotec taken at 7 months of pregnancy will induce labor, and could cause uterine rupture, or cause you to bleed out, causing death.
If you are 7 months along into a pregnancy, and have made the decision the you do not want the baby, please contact a local adoption agency.