Thanks I was confused the babies even kinda look like him Guy A
You say "but could there be another way." I am quite sure the father is not the guy from August 20. Because:
1 - after him, you had a period
2 - he was way too early even if you had not had a period
3 - conception calculator says the following for a due date of May 30
First day of last menstrual period: August 23
Probable date of ovulation: September 6
Possible dates of conception: September 2 to 10
Due date: May 30 (40 weeks)