cycle day 33 no period

Hello! Usually my cycles are from 28-30 days and it's day 33 of my cycle and it hasn't shown up. No pregnancy syntoms really. It's my first month TTC (have been pregnant in the past by accident: I didn't have syntoms either then until 6 weeks). as I didn't want to stress I bought a cheap pregnancy test over amazon that was $8 for 30, so I could test away haha. Of course I've been testing just because (not because I thought I was as I don't feel pregnant) since 12dpo, but they've all been negatives. I havnt stressed at all. I really dont think I'm pregnant. But at the same time I'm confused. I read the reviews on the test brand and they all said it's good just NOT for early detection... some people say they didn't even get a positive until 8 weeks pregnant lol I just don't want to buy an expensive/good test and get my period right after you know? Anyways, any thoughts on this would be much appreciated!!!! Xoxo