I Have 2 Miscarriage , In 6 Weeks And 11

I have 2 miscarriage , in 6 weeks and 11 weeks of pregnancy. Consulted the Gynecologists for the cause and preventions , She suggested the tests for that TOURCH(ig H,igM),Anti phosphorpid , Anti thyroid, hbA1c.Vitamin D and semen analysis for my husband . Vitamin D deficiency is detected . Doc suggested below medicines 1) Tab MSBM (1-0-0) 2) tab TOURCHNIL (1-0-1) * 3 months 3) D sol sachets (8) 2/weeks
Do i need to do any other tests to diagnosis the cause of miscarriage ?Should i go this prescribed medicines ?