FTM - two weeks in - hard breasts - concern

Hello!

I am a first time mom. I have birth 10 days ago and I'd say my milk supply has really picked up in the last 4 days (ie, I've started to leak a bit at night). I breastfeed my baby almost every feeding but occasionally he is given a bottle (i pump during this time). Is it normal for my breasts to still fill full or tender to touch? So worried about missing something and getting mastitis!

I generally pump for 15-20 mins and depending on the breastfeeding session anywhere from 8 mins-25 mins.

Thank you for your help!