If Plan B was used afte­r ovulation, it could influence your period. Plan B's function is to postpone­ ovulation, which may affect timing. Therefore­, it's possible for period delays afte­r taking it. Irregular bleeding and cycle­ fluctuations are potential symptoms. 

Abdominal pain and light bleeding are a common side effect of the medicine you took. At times, the bleeding may differ from person to person, so if it is not heavy that is fine. Just rest and keep yourself hydrated. If the bleeding stops entirely or you feel severe pain then seek medical help. 

The result you provided, 2622.43 mlU/ml, indicates a positive pregnancy test. HCG levels vary among individuals and throughout the stages of pregnancy, but a level of 2622.43 mlU/ml is consistent with a positive pregnancy result, indicating that your wife is likely pregnant.

If your period is normally regular but it’s a little late this time, don’t panic – it could be due to stress, weight change or other reasons. Sometimes our bodies can be a little unpredictable. If you’re worried that you might be pregnant though – try taking a test just for peace of mind. Keep in mind that there are lots of things that can cause changes in your cycle.

It can be caused due to pregnancy or an infection such as a urinary tract infection. If you are experiencing a change in urine odor consult your doctor for an accurate diagnosis and appropriate treatment. 

Periods can be delayed due to stress or changes in routines. Other factors include hormonal imbalances or a possible pregnancy. If the kit test resulted in a negative, consider consulting your gynecologist after waiting a while.