I Had Sex With 2 Different Men, 4 Days Apart.

I had sex with 2 different men, 4 days apart. The second man I used a condom with. My period was 5/8 which was a week late. I usually start around the 1st of the month. On may 19th I had heavy stretchy cervical mucus and he ejaculated in me. The 2nd man I had sex with was on the 23 and we used a condom and I didn't have that cervical mucus anymore like I did on the 19th. I'm pregnant. Do I need to be conferences about who the father is if the condom didn't leak, break , or rip?