Missed periods and spotting - really worried

[CrackinKraken]

Hi, I've just turned 44 and have missed the last two periods (definitely not pregnant).

In the last couple of days I've had some spotting - fairly bright red.

I'm really worried it could be uterine cancer (I'm overweight too and I know this can be a contributory factor).

I've made an appointment to see the dr, but in the meantime I was wondering if anyone had experience of this in their early to mid 40s?

I assumed the missed periods was the start of the perimenopause but the spotting has panicked me. Thanks.

My first instinct would be menopause rather than cancer. Have you any other symptoms that are causing you concern?

other symptoms - twinge in lower back that I've had on and off for several months. But it's mostly not there. I thought the pain there might be because I tend to slouch on the sofa/sit on my lower back of an evening.