Vitamin Deficiency while pregnant?

Cry

Hi friends! Have any of you ladies had an experience with vitamin deficiencies causing miscarriages? I’ve had two previous miscarriages, one at 6 weeks in February, and one at 9 in October. After my most recent one, I switched OB’s and had her run a full work up and the only thing she found was I’m very low on D3 and B12. I asked if that could be the cause and she said not necessarily, but I just found out I’m pregnant again Christmas <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> and am so worried. I’ve been taking supplements since October, but my first appointment isn’t for another 5 weeks.