7DPO should I test tomorrow?

weird things are happening that havent happened before. Today I am 7DPO and I experienced mild cramping and back pain yesterday and a pinching feeling on the right side. Tomorrow I will be 8DPO and 6 days from my next period... but tonight my nipples have started to really itch and my boobs feel feverish but no other part of me does. My husband even said they felt very hot to touch... I thought I was going crazy. I really want to test with FR early response that tells you 6 days before but I don't want to be obsessive about it 🙄 thoughts?