Well, there's no way of knowing without ultrasound, but it is possible to have two competing follicles and therefore two potential ovulations within 24 hours of each other. Also, the actual evacuation of the egg may take longer!
Generally, there is a hormonal barrier between the two ovaries so one thing shouldn't be triggering another. Both respond to hormones circulating in the body, but when a corpus luteum is created, it has a much stronger effect on the same ovary it inhabits, inhibiting other follicles, increasing progesterone, etc. So, with the right hormones, the other side can continue to grow follicles slowly and is therefore 'ahead' for the next month. You can imagine this regime can get a bit out of step now and then; this is usually inherited!
Your own charts show huge temp variations, which can be due to environmental things like waking, mouth-breathing, illness, room temps... but it can also be due to how your hormones pulse and how your body responds to them. You will need to work harder than some women in interpreting the grand trends rather than the individual temp changes. I myself can easily see the biphasic aspects, which hints that you are ovulating and producing progesterone, but correctly timed blood tests will help to confirm this.
You also have a longer luteal phase. This can be because of miscalculation of ovulation, because your corpus luteum takes longer to create, or because your corpus luteum produces progesterone for longer. It's not necessarily a bad thing. A few more charts will help establish a general curve which should reflect the changes in progesterone you are experiencing. For now, though, it's a bit difficult to tell (especially as you had a potential chemical pregnancy before?).
Hope this helps. I am not an expert, and you will know your body best. If you have specific concerns about your fertility or your chart -- definitely talk them over with a doctor!