No Heart Beat?

I was advised tvs by my OB on my 5th week of pregnancy but had it on my 10th week (almost at 11 weeks) Paranoia and anxiety ate my whole being before i had my tvs. . Took all the meds (especially folic acid) my OB prescribed and on the day of my tvs, i heard my baby's heartbeat for the first time and it was indeed magical. . Try to have another tvs at 8 - 10 weeks, there should be a heartbeat by then.