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.
Firstly, we would like to congratulate you for your reversion to Islam; verily, this is such a great blessing and a reason for attaining happiness in this worldly life and the Hereafter, Allaah willing. We implore Allaah, The Exalted, to bless you with steadfastness in holding on to the true religion unto the Day of Judgment. We advise you to seek beneficial knowledge and to keep the company of righteous women.
You should know that such a marriage conducted in the absence of the bride’s wali and with two non-Muslim witnesses is defective (faasid). The presence of the bride’s wali is one of the conditions for the validity of the marriage contract in Islam according to the preponderant opinion of scholars; please refer to fatwa 83629. Moreover, it is invalid to have a non-Muslim as a witness to a marriage contract of a Muslim, as underlined in fatwa 85791. Ignorance of the relevant religious ruling may be a valid excuse for relieving the doer from the burden of sin; however, it does not render the marriage contract valid. The termination of a defective marriage is done either through legal termination of the marriage contract or a divorce issued by the husband, as highlighted in fatwa 243013.
If you wish to retain your marriage, you should renew the marriage contract (i.e. conduct a new marriage contract) in the correct way, bearing in mind that a non-Muslim cannot be a Muslim bride’s wali. Please refer to fatwa 88488 about those who can act as the bride’s wali in the marriage contract.
It should be noted that a marriage is valid as long as all the conditions for its validity are fulfilled, even if it was not announced. Such a marriage is not considered a secret marriage because the announcement of marriage is only recommended and not obligatory.
We hope that you would not worry about your family’s reaction and disowning you because of your marriage to a Muslim man because their objection is groundless because of it being contrary to the sharee'ah; verily, the Truth is more deserving of being followed. Moreover, if a woman is a new revert to Islam, holds a different nationality, and has been previously married, then none of these are valid excuses not to marry her.
Allaah knows best.