Implantation Spotting experience (21 weeks now)

I’m 21 weeks with my 3rd baby. My son is 5 & my daughter is 3. I’m expecting my 2nd baby girl. I didn’t have implantation bleeding with my 1st 2 kiddos so I want to tell you about my experience with IB when it occurred during my 3rd pregnancy. Many women question whether their spotting is IB. Maybe I can help with symptoms. 5-6 days before my expected AF I went to pee & when I wiped I had a light amount of spotting that was brownish/reddish. It was a very small amount & only occurred once when I was wiping. My AF comes every 31-33 days exactly & I NEVER spot before it. I also had light cramps accompany it. I decided to wait a few days before testing to see if maybe my AF was indeed coming early. I got impatient & tested & low and behold it was a BFP! I know IB is rare & not overly common but it can and does happen! ❤️❤️ Here is a pic of my baby now haha!