Okay so I'm 21 and just had my son a little bit ago and I have a friend that is 4 years younger then me (I met her thur my husband, her boyfriend is my husband's best friend. Both her bf and my husband are 23.) She told me the other day that she's been tracking with opks and trying to get pregnant, well thinking nothing about it I told her congratulations and I hope it happens and I ask if "boyfriend" is excited to he a dad. SHE tells me that he doesn't know yet?! Then proceeded to tell me that he has been "letting go" on her leg and body then she has been taking her fingers and somehow shoveling it up inside her 🤢. I cannot. I don't know if she can even get pregnant this way and I advised her to stop. Telling her that doing that to her man can drive him away cause he doesn't want to he a dad. Also he thinks she's on a birth control. ( she stopped taking it) has anyone gotten pregnant this way? What else should I tell her to get her to stop? Should I tell my husband to tell her bf??? Ugh. I don't want to lose her friendship over this but damn..she's doing him dirty.

EDIT: thanks to call the commented what i should do. And to everyone commenting that she's 17. She is 18 now technically. The way our birthdays fall sometimes im 4 years sometimes im 3 years apart from her. I should have made that clear. Also they have been together for I think about 2 years. Me and my husband have been together for almost 6 and we just had a son. She says I gave her "baby fever". My husband and her boyfriend have been friends since they was little due to their moms being friends and their birthdays being one day apart they pretty much are brothers.