Needing Advice

So I'm currently 16 days late (no way I'm Pregnant cuz I haven't slept with my husband since Sept due to personal information I legally can't share, nothing bad though) and the last time I tested was I believe beginning to end of October and it was negative (was a blood test)... Anyways, I have PCOS and haven't used my birth control due to having to go all of August without it due to my Dr refusing to refill it until I had a Physical... Now, Fast-forward and ur up to date with me being 16 days late... I have been having hot flashes from hell and then at times I don't have them... I've been severely emotional and moody and temperamental lately... Is it possible for a 37 year old to start having menopause??? How do I find out if I do have Premature Menopause??? Any advice or help is appreciated... Thanks 😊