Tampon postpartum?

My first baby was a scheduled C-section, so I had no qualms starting to use a tampon when my period returned around 3 months postpartum. However, this one was a VBAC with prolonged pushing, second degree tearing, and mild pelvic floor issues/scar tissue (I’m seeing a PT).

Despite EBF, my period returned 6 weeks postpartum and I’m having my second now at 10 weeks. Did you start using a tampon right away? If so, did it feel different? Did you need to use a different size?