No period. But I’m not pregnant, right?

My period is regular. Every 30-32 days. I’m on cycle day 40 and no period in sight.

My last two periods ( in August & September) were weird. No cramping. But I figured they were periods bc they lasted around 4 days with some spotting and around the time I should get my period.

I haven’t had sex since August so I’m not pregnant. But I don’t understand why my period is so late. I took a rapid results test and it said negative. Also took a dollar tree test and it was negative. Still no period.

How long should I wait to call the dr? Should I be concerned it’s so late? This happen to anyone? Any insight is much appreciated 💕💕💕