Fortunately for you jake is not quite correct. You will not be awarded penalty points for both these offences. In general, where a number of motoring offences are charged which arise from the same incident, magistrates impose fines for each offence, but award points or a disqualification only for the most serious.
However, you are sailing very close to the wind. The most serious of your two offences is failing to stop/report which carries a minimum of five points. However, depending on the circumstances of the incident, the Bench may decide that the minimum is insufficient. This is particularly likely if they consider that driving carelessly aggravated the failing to stop.
If you receive any more than five (taking your current total up to nine or more) the pending speeding offence that you mention will take you to at least twelve. This means you will not be eligible for a fixed penalty disposal for that offence but will instead be summonsed. Since the magistrates must award a minimum of three points for the latest speeding offence you will become eligible for a mandatory ban of a minimum of six months under the �totting-up� rule.
You can argue �exceptional hardship� for not being disqualified under this rule, but loss of employment and consequent financial difficulties does not usually succeed. Most Benches take the view that there is nothing exceptional about these circumstances which could apply to almost anybody who needs to drive in order to get to or undertake their work. They usually consider that drivers who face such consequences should be even more careful to avoid committing offences.