First off... do not panic. If they jailed every DUI offender who drank a glass of wine or beer while on probation then you would not be able to build jails big enough. I am a little disappointed in your probation officer and suspect she may be simply talking tough in order to get her point across. Obviously I do not KNOW what your probation officer will do and I cannot predict what a judge would do, but I do not think it is time to panic. There are a few steps you need to take to protect yourself from being unduly punished for this violation of your probation.
1) You need to talk to a local attorney. How a district handles this will depend on numerous factors that are different from county to county and state to state. A local attorney will know the judge and what his/her policies are and how they treat people who are violated for DUI probation for taking a drink... again I assure you that you are not the first person to do this. I would imagine your attorney will tell you that you are worrying more than necessary. You may even decide to hire the attorney to come and speak on your behalf if a violation warrant is issued.
2) You need to see to it that you are in compliance in EVERY other way with your probation. If you are behind on fees... catch up. If you were supposed to do public service work... finish it. If you are supposed to be in DUI classes or meetings... do not miss one. Make sure you are an absolute model probationer.
3) Do not panic and overreact. You may not be violated and even if you are it may only result in extended probation, public service, a drug/alcohol assessment, etc... While you would potentially face jail time, remember that courts are mainly concerned with correcting your behavior in the least restrictive and expensive manner possible.
Please reply if I can help further.