The 'standard' penalty, in a magistrates' court, for driving with no insurance is 6 to 8 points on your licence, plus a fine. (The maximum fine is �5000 but, depending upon the offender's disposable income, courts would normally be more likely to impose a fine in the range �80 to �400).
However,
there is no mandatory requirement for a court to add penalty points to a licence. Consult a solicitor, who will be able to advise you as to the best way to present your case to the court. (e.g. it might help to present bank statements, showing that you had a direct debit in place and that your bank had bounced a payment). You may well be able to avoid having any points added to your licence.
However, if 6 (or more) points are imposed, you licence will be revoked under the terms of the Road Traffic (New Drivers) Act 1995. The DVLA/DirectGov website states "penalty points incurred after the probationary period has expired will be taken into account if the offence was committed during the probationary period":
http://www.direct.gov.uk/en/Motoring/LearnerAn dNewDrivers/NewlyQualifiedDrivers/DG_4022566
You should remember, though, that 'revocation' is not the same as 'disqualification'. You can immediately apply for a new provisional licence and book another driving test. If you're prepared to attend whichever test centre, within reasonable distance of your home, has the shortest waiting list, you could be back on the road (with a new, full licence) within a very short time.
Chris
PS: Please don't judge this site based upon Norman's posts. Most contributors to this site understand the concepts of helpfulness and courtesy; unfortunately, Norman doesn't.