Eh, honestly I'm not sure pasal Jus Mamariam specifically lah, haven't come across it in our mum circles or tried it myself during pregnancy. Pregnancy first trimester memang kena extra careful with supplements and drinks, so best check with your doctor or midwife dulu before minum anything, especially if it's not a well-known brand. Better safe than sorry kan when it comes to baby! Have you asked your clinic team about it?