Has any body been on magnesium supplements while being pregnant. I’m just taking them because my…

Has any body been on magnesium supplements while being pregnant. I’m just taking them because my friend told me that they were really good for you. So with prenatals and that I was just wondering if anyone else has done it too. Or if you were told to stop or anything. I’m on day 3 of my two week wait lol I can’t wait to start testing!! I was just curious I haven’t talk to a dr yet..