Is this possible???

Hi! I just went to the gynecologist to have my first ever checkup as a “responsible” and to maintain a great reproductive health. However, when they did an ultrasound they saw a “gestational sac-like structure” which may be consistent with 5 weeks gestation. Last period was May 22 and not due until June 25, last unprotected sex (no ejaculation) was June 16.

We’re hesitant about this because the Dr was quick in diagnosing this and we think this might be impossible since we haven’t had sex until last June 16. Help??!!! I’ve been very stressed about this since the appointment because I don’t really want to raise a child with the current economic situation. Will be going to another Ob-Gyn soon for second opinion but hopefully you can give me insights on this. Thank you!