Trying to figure out my due date. Has anyone bled first month? 😬

Pregnant with my third but I know for sure I had a full regular period July 24th, looking back on texts August 28th I asked my husband to pick up a test because I thought I was late. If I'm remembering correctly I started bleeding that night but it was a light and short period. Then the 30th I spotted and then on 2nd of of this month I took a test and bam came up positive on the second pee of the day in seconds. Has anyone had more than just spotting? It wasn't as heavy as my regular period. I go to my midwife in two weeks so I'm sure they'll do a scan but I am wondering if this has happened to anyone with bleeding more than just a small spotting???