Pregnancy or PMS or perimenopause?

shashi

I am 41 having regular cycle of 28 days. AMH value is 4.6 pmol/l.

This month I have 3 days of missed periods and observed elevated body temperature, breast tenderness,little headache in morning,bloating and constipation but found negative result of pregnancy. What should i expect?

Is it too early to pregnancy test or is it sign of PMS or perimenopause?

Please suggest.