In a nutshell, this is a love story between a...

For first, a marriage of a christian man to a Muslim girl, this is something that Egyptian laws do not allow for religious purposes and legal fatwas issued by the Dar Al Iftaa, and getting married outside the country will come illegal, because you will be required to bring documents from your country's embassies, which will not be given.
However, if you marry in a civil marriage, the Egyptian legislation does not recognize civil marriage, because the marriage contracted by law, according to the list of authorized persons, is the marriage that takes place with the approval of the court and at the hands of a legal marriage officer.
As for children, from the legal point of view, they are considered Egyptian citizens according to the nationality law, which considered that any child born of Egyptian parents is considered an Egyptian national, but you will find it difficult to register the children in the civil records since your marriage is not legally conducted, so the correct procedure is for the husband to change his religion in a formal manner through a case at court, and after changing your religion, you can both marry

There is no problem in traveling to and from Egypt as long as you have the Egyptian nationality