advice/father/baby

had sex may 5 guy A

period may 16/17 - 20 wasn't light.

sex on may 20/21 - may 25-26 guy B

found out pregnant wa june 7.

june 27th i was confirmed 6 weeks.

period before that was about april 22/23. period are not 28 day lengths.

i'm convince guy B but he wants testing done.

Any advice? amniocentesis?

no judgement please!

ultrasound on june 27