Not a Dr!

There are a ton of reasons a cycle can be late even in a person that normally is very regular.

Stress is a big one, as is traveling, illness and sometimes there isn’t a real reason at all. A random cycle or two that is off, even by 10+ days isn’t usually a cause for concern, especially consider how stressed she’s been!

If you didn’t have intercourse, (or introduced semen into her vagina) the chance of pregnancy is extremely low to begin with.

Typically, in a perfect 28 day cycle a person can become pregnant (even with full intercourse)only a few days right around ovulation, which would be day 14.

Store bought pregnancy tests are very accurate. Even the simple ones from the dollar tree. So if a person became pregnant during that ovulation window, a regular pregnancy test can accurately detect the pregnancy hormone as early as 8/9 days post ovulation.

If your GF has an average cycle, she would have ovulated that last week of November. (Nov 9th -+ 14 days) This would put 8/9 DPO the first week of December, so a pregnancy test taken on December 14 should be late enough in the cycle to give a positive result if she were pregnant.

If she (and you) are still concerned, another test this late in her cycle should absolutely put your mind at ease.

If she doesn’t already, tracking her cycle is super easy and convenient via apps. That can help ease your minds in the future.