No, and you are not the first one to ask this question. There are many people who are skeptical of taking hcg shots while having BC pills. But then there is nothing to be afraid of. You are safe to use Birth control pills on hcg diet as it will prevent unwanted pregnancy. HCG for that matter also helps in weight loss. While it might make you more fertile, the BC pills will take care of the pregnancy. So relax and enjoy the hcg diet.