Spotting before and after period?

Brittany • I ❤ my baby girl💖 my baby boy 💙 🥰🤰 God is always good 👌🛐 I got one on the way.

Has anyone ever experienced spotting before and after a period. I've taken two pregnancy tests. Both-negative. My husband and I have had protected sex all but once and that was before my last period. I had my son less than six months ago. Could it be hormonal?