hello i am a very worried mom to be... this is my first child. i had sex with Guy A on Feb21st and then with Guy B on March 17th... i had an early ultrasound on May 1st where they told me that i was 8 weeks and 5 days.. (with this information i would say Guy B would be the father) ... but i just had my second ultrasound on June 14th where thy told my i was 15 weeks 4 days.... that’s a week difference from the original dates i was given.. could Guy A be a possibility ?? i’m not sure... idr when my last period was i believe it was March 2nd but i’m not 100% sure that it was or wasn’t my period.. could i have been pregnant already and that may have been implantation bleeding ?? i’m so confused and i need answers:(