Whether the court imposes jail time cannot be predicted. It is totally dependant on the judge and the circumstances under which you were driving. However, since you were apparently driving withing the period of the 90-day suspension of your previous conviction, there is a high probability that you will receive some jail time. In Virginia, a conviction of driving on suspended requires the court to suspend the individual's license for an additional period of time, and you would have signed a form, acknowledging that your license was suspended at the time of your initial conviction.
You should definately find a lawyer.
[This communication is intended as general information and not specific legal advice, and this communication does not create an attorney-client relationship.]