Advice needed!

Je

I’m only 2 days late but since November I’ve been getting my period on the 28-29 like clock work. This month has been slightly different, normally I get symptoms (headache, sore boobs and really tired) the week before. That didn’t happen, what did happen was my boobs started to get sore the day I thought my period would come. I’ve been more stressed so figured maybe that’s why it’s a little late. I took a test this morning with a cheap strip after a couple minutes I look down and I saw two lines. In disbelief I took another test a little later with a digital test and it said NO. That test wasn’t done wirh my first morning urine but it says it can predict answers 6 days before missed period. My question is do I just wait it out a couple more days or what?