Late period by 28 days cycle day 61

My last period I had was April 9-13 I am sexually active and yes I had unprotected sex which was a bad idea. I thought it was delayed and I took a test on day 34 and I think day 37 last week I had a really small amount of a spotting thinking it was my period and there is still no period. Could it be stress causing me to be late? I’m never late on a period and it’s worrying me a lot 🫤🥺