Rite Aid also restricts markets. “Due to increased demand, we are currently limiting purchases of Plan B contraceptive pills to three per customer,” Alicja Wojczyk, senior communications director for Rite Aid, told CNN. On Monday, CVS told CNN in an email that although CVS had “plenty of supply” on Plan B and Aftera – two types of emergency contraception – the company limited purchases to three per client “to ensure fair access and consistent supply of store shelves “. On Tuesday, CVS lifted those buying limits, a company spokesman told CNN. “Immediately after the Supreme Court ruling, we saw a sharp increase in emergency contraceptive sales and applied a temporary purchase limit to ensure fair access,” Matt Blanchette, CVS Pharmacy Senior Retail Director, told CNN. “Sales have stabilized since then and we are in the process of lifting the purchase limits, which will take effect at the store and at CVS.com over the next 24 hours,” he said. “We continue to have an abundant supply of emergency contraception to meet the needs of our clients,” Blancette added. Emergency contraception reduces the chance of pregnancy after unprotected sex, according to the American College of Obstetricians and Gynecologists. Common conditions when used include after forgetting to take many birth control pills or when a condom breaks or falls off. Urgent contraceptive purchase limits come after the Supreme Court overturned Roe v. Wade on Friday. Several states immediately moved to effectively ban abortions. “Use (emergency contraception) does not cause abortion. An abortion terminates an existing pregnancy. EC prevents pregnancy. EC must be used immediately after unprotected sex to be effective. It does not work if pregnancy has already occurred.” , ACOG said. Pills, such as Plan B and Aftera, are a type of emergency contraception. Some can be purchased without a prescription and others require a prescription. Copper endometrial devices, or IUDs, can also be used as emergency contraception if placed within about five days of sexual intercourse.