Interesting. I am for restrictions in the third trimester (actually am against it period, but I relent to a woman's right to choose...minus the last 3 months). The reason for me is that the child is developed and could be born at that time (yeah, I know we can in the second....but my line is drawn at month 6).
What is your reason for restricting the first trimester? Giving the woman more time to decide?