Pregnant?

My period is due Feb 22nd! (I usually cramp the week of- no cramps)

Thursday (6 dpo) I had very very light pink spotting which only lasted an hour or two.

My husband and I are TTC and I am 9 dpo and both of my nipples are so sore! They are very tender to touch. I know it’s too early for a test... but what are you mommy’s thinking, could this be an early sign?