So I was at my non Catholic half sister's house (I wasn't raised going to Church) and I was thinking about how birth control pills kill fertilized eggs. I wonder if we are obliged to tell any non Catholic couple about this since they most likely wpuld be using some kind of birth control and even if they don't believe in what the Church teaches the killing fertilized eggs thing would be enough to get a lot of heretics or schismatics who are pro life off of birth control pills. I was going to tell my half sister about this but my mom rushed me out the door. I am considering just emailing a lot of family members about this to spread the word.

Am I the only one who doesn't know about The Trad Forum?

Cryptinox:  Yes, give information out.  www.OneMoreSoul.com  Man made synthetic hormones act on the brain. To turn off the cycling. The drug makes for little or no bedding if there was a conception.  So, a conception would not be able to implant.  But that website should be just fine.  But are your sisters married.  Many are not marrying and just living together. Then that is another story.

I agree with Seraphina. It's none of your business and you might ruin your relationship with your sisters or cause trouble with your brothers-in-law. You have no idea if your sisters are on the pill.  Once a friend of mine told me that her brother in law upbraided her because he assumed she was contracepting. What he didn't know is that his brother- my friend's husband had herpes and passed it on to her. She can't have children as a result.

You sound like you’re a minor still under parental authority.  I’d say admonishing your relatives about so private a matter is definitely NOT your duty.  Yes, pray for them, pray for Our Lord to send the right person to inform them of how most birth control chemicals work.  You actually have no proof they are using abortifacient birth control, and it’s really none of your business.

I was planning on doing something like this.
"So you're pro life correct?"
"Yes"
"Ok I got something important to tell you."
"You know birth control pills right? Did you know that they actually kill fertilized eggs? I would recommend getting this information out to anyone you know who is on the pill and to stop taking it if you are."

I would just approach it by sharing, "You know what I just found out!"

and

"I had no idea about that.  I'm blown away by how many abortions are taking place every single day because of this."

Use "I" instead of "you" and you aren't admonishing anyone, just sharing astonishing information you've discovered.

If you want to really paint the picture:  "I'm just shocked that we are actually flushing our babies down the toilet in this country."   smh