I bet your ovulation was delayed by the stress/excitement of the wedding and honeymoon. I have charted about 30 cycles and one time my ovulation was delayed because I started a new job on CD 14, so I didn't ovulate until CD 17. However, it also sounds like your cycles are not regular anyway.
The time period between the beginning of your period and ovulation will vary. The time period between your ovulation and your next period is always the same. Thus, if your period is late and you get negative HPT, the conclusion is that you ovulated late. Keep taking tests once a week. Call the doctor if you don't get your period for 60 days.
Click on the Newbie Link at the top of the page. Read a book called Taking Charge of Your Fertility. Go to FertilityFriend.com and PeeOnaStick.com. Good Luck!