period 2 days late

my period is 2 days late it’s usually somewhat regular. we use condoms everytime except one time we used no condom for a minute or so and then put one on and finished in the condom. my breasts are not tender, no cramps, somewhat bloated but that usual, a little moody. last night i had some brown discharge i thought was just brown dried blood so i assumes my period would come the next day. i don’t feel pregnant or have any pregnancy symptoms. is it just stress delaying it? or should i test? when should i wait to test for pregnancy? anything helps thank you.