It sounds like you want to do almost exactly what I am doing. Good for you!
I have been with my husband in Canada for 11 months now (1 week interruption in June for honeymoon in the Caribbean) and am waiting for my PR.
I initially came here before we got married, for 4½ months, as we were thinking about a honeymoon in Europe back then. At customs they didn't ask whether I was getting married so I of course didn't tell them. They did send me to Immigration, probably because I was staying for months and was bringing my cat. I was eventually let in after asking me various questions (apparently my anbswers satisfied them) and making sure I did know I wasn't allowed to work or study.
We ended up not going to Europe on honeymoon, but having a honeymoon in the Caribbean a month after we got married. When we got back into Canada together after that, we showed them some wedding pictures and proof we were applying for my PR. The BO wearily waived us in.
I am in Canada uninterrupted for almost 6 months now, so the stamp in my passport is about to run out. So I applied for a visitor extension.
You are, like me, from a visa exempt country so you can come to canada and stay here as a tourist for up to 6 months. After that - at least 30 days before your visitor status runs out - apply for an extension through regular mail. The processing of visitor extension applications through regular mail is pretty slow (4 to 5 months) and meanwhile you are on what is called "implied status". If the extension is granted you can stay for the amount of time they have given you on the extension. If needed, you can apply for another extension after that.