Question about AMH

So I've had my AMH tested twice and it's definitely on the low side. I was on BC for over 10 years, thus didn't ovulate.

Does that mean if I wasn't on the birth control, then I would have an even lower AMH? Like possibly could have been hitting menopause already?

I haven't seen my second results, the doctor just called to say yes they're low. My first results were in the range typically seen in women 40+, I was 33 when the first ones were taken.

Thanks!