Of course you could be. If you are still ovulating you could get pregnant. Some women lose their fertility far earlier than others do. You've already "proved" yourself capable of having a baby later than most do, so it's entirely possible.

If you cycle has been a bit different then it is also possible that you could be having a shorter cycle as well as longer ones.

I too have found my cycle is changing - but mine is going shorter. I recently had a 20 day cycle which I've never experienced in my life (I'm 43). Perhaps you are experiencing a shorter cycle too which of course would mean you have already O'd & could be pregnant.

Some doctors are all doom & gloom about older mums. The first OB I saw at 41 told me I'd be in bed from 30 weeks as I was bound to need bed rest from all the complications I'd get. I switched OBs & the new one treated me just the same as the young ladies as he didn't believe I was at that much higher risk (apart from abnormalities of course). I didn't get any pregnancy complications at all (just slight birth ones) & worked full time right up to 37 weeks. I found it interesting that it was the female OB that was negative. I would never have expected that.

Anyway, I've rambled on enough. Good luck with it all. I hope you get the result you want.