Is this normal? The heck

So I usually have my periods like clock work and have 28 day cycles.

Since covid started I’ve missed 2 periods (spread out) but ended up getting both periods the following months.

This month my period was 2 days late but started with brown spotting and then just brown blood/red blood. Super weird, never really happens.

I know that it could be stress but what even? Even stress never used to make me miss my periods. I turned 26 in November if that has anything to do with it.