Forget "may". You never will. I simply cannot understand why people who profess to be against abortion come up with these ideas for making abortion even more prevalent than it is. :) You are welcome not to use the pill; you cannot make that decision for other women.
Life begins at conception, if you choose to kill a child, I will not just stand by and let it happen. There are many alternatives to birth control pills and abortion. Selfishness is not an excuse for murdering a child.