Hi Anonymous and welcome to EmpowHER.

You seem to be asking about a number of things. First, you are experiencing some irregularities with your period. There can be many reasons for this, including being under stress, which impacts female hormones. Please see the following article.

What is an Abnormal Period?

You may also be dealing with a vaginal infection based on your comments about having a white discharge. Please see this article for more information.

Is My Vaginal Discharge Normal?

In terms of being pregnant, it is highly unlikely that you need to worry since you had your period.

Hope that helps,

Pam