SAN DIEGO — Suspension of most abortions in Arizona is already putting significant pressure on medical clinics in San Diego, Imperial and Riverside counties. Planned Parenthood of the Pacific Southwest, which operates 19 health centers in those three counties, said Wednesday that Arizona women have scheduled 175 appointments at its various locations since the U.S. Supreme Court last week overturned Roe v. Wade, eliminating the constitutional right to an abortion after almost 50 years. It’s a massive increase given that just 13 abortions were scheduled by Arizona women during the corresponding …