All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
If a woman is divorced a revocable divorce, it is permissible for her husband to take her back without a new contract or dowry. It is not even a condition that witnesses be present, but this is desirable according to the majority of the Islaamic jurists. So it is correct for your husband to take you back. As regards divorce, since your husband had uttered it, then it is considered as a divorce, and in this case it is a second divorce.
Finally, we draw your attention that each spouse should solve the problems that might occur (between them) with wisdom and prudence, as the consequences of hasten to divorce are usually regretted.
Allaah knows best.