I missed my period 16 days , but 4 days ago I start spotting with pink brown, and just Little , when I am wiping its visible , I never had any problems I always had on time please help what's wrong with me can I be a pregnant? Or something wrong with me

If you've had sex, yes, there's a chance you might be pregnant. But there's all sorts of other reasons your period may be late. So the only way to know is to take a test and/or call your doctor.

What other reasons ?

Yes I am married, I had a sex

Stress and health issues can cause you to miss or have a late period.

reasons your period may be late other than pregnancy - Google Search