Bloating... late period 😑😑

So last month my period was a lil late an then when I got it it only lasted a day an now I’m gettin bloated so easy an my period is 4 days late. It being so late has me stressing cuz I don’t think I’m pregnant I just started a new job in July so I assumed the stress of the new job was why it was late last month plus my kids dad had/has been stressing me out with his mood swings my eating habits haven’t changed a whole lot my new job I’m moving around a lot more an since it’s still summer an hot the building I work in has been hot I’m drinking a ton of water and sports drinks while at work but my eating while at work is more then I usually eat but with how much I move around on some jobs i know I need to eat more since I’m working the food off my sons also started school last month so since I work nights I’m sleeping a 3-4 hours before wakin up to get him ready an taken to school I’m thinking my period being late is stress related but it being late is stressing me out even more an this bloating is driving me nuts I need it to go away I hate it cuz then my clothes don’t fit right an make me self conscious when they fit tighter then I’m used to 😫😫😫 any advice or whatever is appreciated