I am a breastfeeding mommy of an 8m old. She’s taking some solids but breast milk is her primary source of food.

So, my husband came in me on the 30th (circles in green) and I was about 9% fertile. The 31st I started spotting bleeding but not enough for a pad. The bleeding stopped around the next day (the first) or maybe the second. I’m not too sure. I took a pregnancy test on the 31st and it came back negative. I also took a pregnancy test about 3 days before my period was supposed to be due and the result was invalid. Now here we are on the 21st (my time zone is 14 hours ahead of standard American eastern time) and my period hasn’t made an appearance. I decided to take another pregnancy test on the 20th (yesterday) and it said negative. Anyone has dealt with this? I’m starting to wonder if the 31st- 1st (maybe 2nd) was a period. But I’m not too sure since it was basically just spotting.