Cervical changes normal?

New here. Hello.

I have a smear scheduled Dec 29th. I have birth 14 weeks ago(not sure if it’s relevant). And after everything mostly healed i did a cervical exam on myself at about 8 weeks postpartum. I found several lumps and some scaly texture on my cervix.
Other issues include-
Stringy mucous streaked with blood(occasional but a lot and thick)
Menstrual like cramps that have lasted for several weeks(constant dull ache for the most part)
Lower back pain

My last smear was when i was 8-10 weeks pregnant and it was normal(so almost a year ago). So far I’ve only had one period since giving birth. It was heavy and chunky(tmi sorry) with soooo much blood. More than used to. I guess my question is, can cancer just appear that quickly? And has anyone else felt scaly lumps on there cervix and it not be cancer?