Talk to Gynecologist on Gynecologists

I had two misscariiages again seven weeks pregnant doc prescribed IVF 5000 weekly and claxane inj daily along with duphaston my fol and loprin I want to ask these injections r given do they prevent misscarriage and help in baby growth both loprin and claxane are ok to give at same time plz rep this time no one rep on my other posts according to lmp IAM seven weeks and according to us IAM eight weeks y is this difference