Could Stress, Travel, And Sleep Deprivation Be Causing My Delayed Period And Lower Abdomen Pain?

Hi, I m 27+ years old and a mom of a 1year. I have been facing Irregular Periods . From past 3months I used to get my periods 2days after the expected date. Last periods: Feb 8th 2024. This month, March I had to get my periods on 11th but it s delayed by 5days now. I have been experiencing severe lower abdomen pain like periods cramp pain from 3days but not a sign of periods bleeding. I don t think I m pregnant. Also my sleep cycle is a bit deprived, recent stress and also travelled to a hot climate place recently.