Anyone know what happens if you get the implantation birth control if your pregnant. I've been so curious but I can't…

I've tried to look it up and I can't find anything

http://www.ippf.org/western-hemisphere/our-work/what-we-do/contraception/myths/Implants

this may have the info my internet wont load either

i've been told if you get birth control while pregnant, they have to end the pregnancy due to all the risks. i'm not sure though.