Vitamin D and B12 Deficiency

I've had a MC and a chemical all in the last 5 months so my doctor did blood work to check vitamins. I have had D and B12 deficiencies before so we checked those and I'm deficient again. I take vitamins everyday but still very low.

Any similar experiences? Did you have a healthy pregnancy with stronger supplements?

(Btw should point out we did lots of other tests that haven't come back yet but I'm impatient and already digging for answers based on these results 🙃)