pregnant?

I had sex the last day of my fertile window and used a condom. But before putting it on he put it on the floor (after being opened). We were in a field but lying on a blanket so idk if a stick couldn't pricked it but there wasn't rly any or he could've squahed it and ripped it idk but it felt normal. This was Tuesday and it's now the following Monday And the past 2 days I've felt really sick and dizzy, my periods due in 8 days and I've not had much discharge. Am I just being paranoid?