Cassiani, if you change the time that you're taking your temperature, it's not uncommon to have your base temperature change somewhat. Your CM and cervix can do some pretty inconsistent things as you are getting ready to ovulate. If you have CM, you consider yourself to be potentially fertile. Some people can get a lot of information from their cervix. Other people, it's not as useful. In general, it will be higher and more open just before ovulation and will close afterward, but I haven't heard of any rules for using the cervix to pinpoint the start of the fertile period. I have seen textbook charts where the cervix closes after menstruation and then slowly rises and opens to ovulation and then closes and stays low and firm until the next period only in textbooks. I've never seen a cervix pattern that looks just like that on a real person. It's often more complicated. When in doubt, pay more attention to your CM before ovulation. The EWCM with a little bit of blood is a somewhat uncommon but well known phenomenon that is caused by your uterine lining building up so much (more common in long cycles) that you can't maintain it with just estrogen (dominant in the pre-ovulation phase) and not progesterone (dominant in the post-ovulation phase). Little bits or even a lot of the uterine lining can be sluffed off just prior to ovulation, usually to the accompaniment of fertile-type CM. This is common enough that in the CM only methods (when temperature record has not confirmed that you ovulated previously), all bleeding is regarded as potentially fertile. Basically, don't worry too much about it, but assume that you are ovulating very soon. Also, for your period, if bleeding goes beyond 7 days, you can certainly consider yourself to be infertile for the first 5 (or 6, depending on your set of rules and previous cycle history) days of bleeding if you had a previous temp rise in your last cycle (I realize that some couples abstain during the woman's period). If the bleeding is light enough to check CM in the last days, do so, and you can choose to consider yourself to be infertile if you wish, though this is more risky, since the bleeding can cover small amount of CM. When the bleeding stops, you can use the "last dry day" rule if you wish. However, if you have a typical cycle with ovulation on CD 14, if you bleed until CD 7, it is possible that you could conceive based on DTD on CD 8 if you have CM, so it is quite possible not to have any post-period infertility.
Infojunkie, it does sound like that thermometer was a dud, but I wouldn't throw out all your temps. When you are anovulatory, your temps don't tell you much anyway. The only temps that are important to keep accurate (for the purpose of determining fertility) are the 6 temps before a temperature rise and the 3(ish) temps after. We just take our temps all the other times to give us a better idea of what's going on. So, you have either ovulated already (not likely by your CM record), in which case, your period will start in the next couple weeks, or you have not, and as long as you don't ovulate within 6 days of starting to temp again, there's really no problem. If you do ovulate within 6 days of starting to chart again, you won't be able to declare yourself infertile by a sympto-thermal rule (though you could potentially do so by a CM only rule) this cycle. If you don't ovulate within 6 days of starting to temp again, you really haven't lost anything because temps before that don't mean anything (except to assure you that you have not indeed ovulated yet, something that is priceless for the amount of stress it saves you thinking that you might be pregnant in the postpartum period). Just be careful when you start with the new thermometer about your charting software (or your own eyes) drawing conclusions about you ovulating between changing thermometers. If the other one wasn't working, you might get higher or lower temps from the new one, and if it's higher, you won't know right away if you ovulated during the down time or if you're just getting better temps now.
Butterflymomma, it does look like there was an error in yesterday's chart. However, same as I told infojunkie, it doesn't really matter much if it's not part of your pre-shift 6.