baby dad . i need help please,no jokes.

April 13 - i had sex with this boy name "j" and he didn't cum in me , and i got my period a little while after i had sex with him. 

April 20 - i had sex with this boy named "s" , now him and i fucked literally like the last day of my period. and i haven't gotten my period since 

now i'm pregannt , and they estimated ABOUT 5 weeks , the baby was really tiny and my bladder wasn't full , so it was a little hard to see .

is there a chance "j" could still be the baby father? please tell me no bc "s" doesn't know about "j" and neither does my family. 

i've already fuck if up bad bc i had sex with three guys total but j and s were most recent last month. 

guys i need help. im 16 years old . i can't have judgment , i need actual advice

is is possible that J could be the father of this baby?