She said my periods would probably resume as my weight became healthy, but that I had long since stopped ovulating and it is extrememly rare for a body to resume that once it quits.
Um, yeah, not. Having fairly regular bleeding is pretty convincing evidence that you're ovulating. Yes, anovulatory bleeding happens, but it doesn't happen every month. If you're overweight and infertile due to being anovulatory, losing weight is the first thing to try when you want to get pregnant. If you have PCOS and are overweight and anovulatory, losing weight is even more likely to get you ovulating regularly, with a low-carb diet being a close second.
My last bleed was in october
Do you remember around what date? (Going back through your diary says maybe around the 5th?) So that would make today about 7 weeks LMP.
is it possible I am pregnant? (very,very early pregnancy if so) Should I take a test?
Totally possible, assuming you had sex at some point in the last 5 weeks. And 7 weeks isn't early - if you're pregnant, an HPT will definitely show it if you're that far along.
My second vote (assuming negative HPT) is that this is an ovulatory cycle, and you've either got ovulation-related breast tenderness or pre-menstrual breast tenderness. If you've gone years without ovulatory cycles, you have no reason to think that you don't have breast tenderness (caused by high progesterone levels) as a premenstrual syndrome, because an anovulatory bleed by definition isn't menstruation, and isn't preceded by premenstrual hormone changes.
Particularly women who've been pregnant, how soon did you have breast tenderness?
We spent about a year (although only 6 cycles) TTC with the help of technology and charting, during which time I was on a bunch of TTC groups / message boards. Every pregnancy symptom known to woman has hit someone as a premenstrual symptom; most of them are caused by high progesterone, and almost everyone has high progesterone right before they get their period. (I started throwing up a couple days before a positive HPT. I thought it was morning sickness. Nope - gallstones!) If you're really 7 weeks along, though, that's not too early for "real" pregnancy symptoms.
Yeah, it's fine to work out as normal.
Good luck and let us know!