On August 6, 1975, 29-year-old Cheryl Tubbs underwent a saline abortion at Pacific Glen Hospital in Los Angeles County. This was an antiquated technique, developed in Russia in the 1930s and abandoned in Japan, the Soviet Union, and Sweden due to the extreme risk to the mother. Nevertheless, American abortionists embraced it. After the safe, legal abortion, Cheryl bled heavily, so she was transferred to White Hospital on the evening of August 7.
Cheryl continued to bleed profusely, and twice went into cardiac arrest. Staff performed a paracentesis on her to remove blood and fluids from her abdomen. About an hour after midnight, staff could no longer detect any blood pressure. For an hour they tried heart massage, to no avail. Cheryl was pronounced dead at 2:30AM on August 8.
An autopsy revealed that Cheryl's uterus had ruptured during the abortion, spilling blood and uterine material into her abdomen. She had bled to death.
Two years later, Jackie Bailey also bled to death from a ruptured uterus caused by a saline abortion at Pacific Glen.
As you can see from the graph below, abortion deaths were falling dramatically before legalization. This steep fall had been in place for decades. To argue that legalization lowered abortion mortality simply isn't supported by the data.