You can learn current processing times from the USCIS, and current priority dates from the visa bulletin.

Had you registered your marriage prior to winning the DV lottery, and had your marriage been determined to be bona fide at the time of your interview, your spouse would already qualify for permanent residency. If you represented yourself as single at the time of your interview, without any reference to a fiancée or child, you may have created difficulties for yourself as you now try to claim an established family relationship.

As it stands, your last minute marriage and almost immediate flight to the United States, leaving your new wife and baby behind, is likely to raise questions about whether your marriage is bona fide. We don't know what, if any, evidence you can product that would suggest that you were and are in a bona fide marital relationship with your spouse. You should consult an immigration lawyer with the full story.