Good day girls, I have a question: How long does it take for people to…

Good day girls, I have a question: How long does it take for people to absorb magnesium B6? I've been taking it almost since the beginning of my pregnancy and still am at 28 weeks. I'm wondering if this is normal or not. I just feel a bit nervous. And I think if I stop taking magnesium B6, I will be even more nervous.