Can anyone help me please

My bloods have just come back from the doctors it’s been a month since I got them took and the results came back that I didn’t have any vitamin D in me at all and it was quite alarming we’re I have now got to take tablets for 4 months then go back for more bloods to see if there is any change but I did an ai insemination this month and what if I’m pregnant I have read all the risks about being pregnant with no vitamin d in you while pregnant and it’s quite alarming as the baby can be very ill but would there be any effect on the baby if I am pregnant if I take the tablets? X