Conceive Problem

I married in Oct 2017 and I got pragnant on month after married but after 6 week it misscarage after it I got again pragnant on March but it's also missed after 10 weeks because heart beat was not seen doctor do d&e for clearance I have thyroid problem now my tsh rang is 5 plz help me for conceiving I want baby I try last 4 month but still it's not