Pads vs tampons 🤔

Emily • Undergrad. Canada. Aspiring Lawyer 💸
I usually wear tampons but for my last period I used pads because that's all i had and couldn't bother going to the store. I noticed my period was about 2 days shorter than usual. Is it because I used pads? 
I feel like tampons might bottle everything up whereas pads everything comes out? Am I making sense? Let me know what you guys think!Â