If I was running a store and had a customer with money in their hands trying to give it to me and my clerk said no because of their religion, I would be looking for a new clerk.
Well, consider this angle: If you felt the opposite way, and believed that your store should never sell Plan B, Planned Parenthood would believe you should be forced to sell it, and that if you fired a clerk who sold it, you would be as bad as a rapist. And in Illinois, the Governor would force you to sell the product and take action to pull your license if you refused.
Don't forget who the fascists are.
That would be true of some employers. It's probably, at present and in practice, the employer's choice.
So there ought to be signs up in pharmacies indicating whether it is or is not a place that practices ordinary medical ethics (e.g. the Hippocratic Oath.) I would patronize only the ones that said a life was worth more than a handful of money.