So.. period is now 4-5 days late

I had protected sex on June 30, twice with 2 different condoms and my boyfriend never ejaculated in me. I have been going through a lot of stress, exercising a lot (swimming everyday , walking , etc ) but my period hasn't come. I have irregular periods. I track mine here on Glow and now twice I have had to put "my period is late". I've tried to stay calm, but I'm starting to lose that calm. I have period symptoms. I was taking a shower one day, it was after June 30, can't remember what day it was but I had like a milky white discharge (the best description). I actually had to pull it out cause it was in there pretty well. Not sure if it's considered the milky white discharge but I don't recall having anything like that before. I've had discharge every day now and not sure why. It's like watery discharge. I keep feeling that my period is coming. I was at the beach on Sunday and all of a sudden I felt that my period came because I felt something down there. I went home to find nothing. Not sure what to do or really think. I keep thinking my period is going to come, not sure anymore though. It's going on 4-5 days being late. It was supposed to come on the 9th. Any advice, thoughts here? Thanks so much!