Recently, because of the interruption of my predecessor, I had a conflict with my husband.

Your ex is bothering you. You can communicate with your husband first. Explain the situation. Show your love to your husband. Still this attitude of no opinion on the ex.

If you keep secrets from your husband when you are dating your ex, of course he will be angry. Thought you might not be important to him.

Secondly, you can bow to him in this respect, indicating that you love him forever and will not leave him.

Finally, find a time that suits you and cook a meal carefully. Or tell him the news of your pregnancy at any special moment.