Planning for pregnancy after miscarriage

Hi Dr I had my miscarriage one year before after that we try for pregnancy this year but when my period was missed I check pregnancy test it is positive but after 45 day I had my  period so I consult gynecologist she told me that I had chemical pregnancy failure or abortion she told me some test to know the reason test name is 1-anti cardiolipin antibody panel. 2-anti phospholipid antibody Igg. 3-anti phospholipid antibody Igm. 4-lupus anticoagulant DRVVT. 5-glucose fasting and with out fasting.6-calcium.7- thyroid profile total T3+totalT4+TSH.8-D3. 9-B22. 10-tourch test all reports r normal only B12 and D3 r less.so need to know the reason why this is happening to me.she suggest me some medicine like b12,D3 for two months and aspirin 150mg and mcmb 69 till pregnancy.what can I do will it work .my period was always normal no irregular period.plz help me where I was not understanding what is happening to me.thank you in advance.