Hi Picklestar,
PCOS is a common cause of irregular periods.
If possible, do not go to the initial appt in 10 weeks time on your own. Your man should also attend. Such appts can and do cause considerable nerves and you can both give each other moral support. Write down any question you want to ask well ahead of time and ask them. No question is too trivial to ask. You also do not want to leave there thinking along the lines of , "oh I should have asked about xyz etc". Make notes during the appt as well.
I would try and establish as well how often you will be seen and by whom; continuity of care is vitally important.
You should be fully aware of what tests will be done and importantly why such tests are being done (i.e for what purpose).
Both of you will and should be tested further. The initial appt is usually a chat about your medical histories along with your menstrual history and general state of health.
In the meantime keep a pain and symptom diary; this can also give them clues as to what is happening here. The pelvic pain is likely not to be related to PCOS, something else is causing that to arise. Is the pelvic pain cyclical by the way?. Do tell them about that in detail along with the episodes of spotting; the more info they have the better.
It is vitally important that the three of you can act as a team.
Clomid is often a first line of treatment for PCOSers but its not going to address either the spotting (sometimes low progesterone levels cause that to arise) or the pelvic pain. Its also quite powerful stuff so should be given with care to PCOS patients anyway as clomid resistance is not unknown. You should anyway be monitored whilst on it preferably through both blood tests and ultrasounds. No monitoring is completely unacceptable. Clomid is usually given for a max time of six months after which other treatments are tried.
Verity's website on PCOS may be worth a read www.verity-pcos.org.uk
HTH a bit, any other questions just ask.