Please help me figure this out

Alyssa • Mommy to Arabella Nova ✨🌙
So i had a miscarriage in April i had my period soon after that and its been regular ever since. I havent been really keeping track of everything but something is off with my body like when i was pregnant. My head is killing me my areolas have gotten vigger and darker , back pain and nausea started today. Could this be my rainbow baby?