Am I being overly nervous?

Hello there. So a quick question... I was stressing out for half the month that I was pregnant and I got my period 5 days late (probably because of the stress.) This period was extremely heavy at first with clotting and severe cramps but now it's almost the fourth day and it's already almost over. It usually lasts 5 days. All my other symptoms like sore breasts and cramping have gone away now. Am I just being silly by stressing over this? I'm definitely not pregnant, right? Thank you for your help!