I made Umrah whilst I was in Haidh.

Answer

It is abhorred and extremely sinful to make Tawaaf whilst in haidh. A Dumm is necessary. However, as long as one is still in Makkah, one should repeat the Tawaaf after attaining purity. Then the Dumm falls away. It is not necessary to go into Ihraam again to repeat the Tawaaf. If the Tawaaf was not repeated in a state of Tahaarah and one left Makkah then the Dumm has to be made.