My wife has some spotting and bleeding between periods, it makes me very nervous?

Possibly. Let's take care of both of you. A frank discussion by the 2 of you with her gynecologist is first step.
Why are you nervous? You don't mention why it makes you nervous. Perhaps you have a reason, but breakthrough bleeding around mid cycle may have to do with estrogen excess or even insufficient estrogen...And can be caused by, or relieved by oral contraceptives in many cases. There are other, less common causes, but it is not clear from your question if there is reason to suspect anything more complicated.

Related Questions

What causes abnormal spotting/bleeding between periods?

Irregular periods. Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections and hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit. Read more...

I didn't have periods for almost 4 month than I had one o 3/14 today there is spotting. Is it normal bleeding between periods thank you?

See below. In your particular situation, intermenstrual spotting is not surprising. You skip periods because you are not ovulating with regularity. This is essential to keep cycles regulaar. Read more...