Help idk if im preg? We did it but the condom popped can someone plz help me?

Im 15 and 2days ago me and my boyfriend had & we did use a condom but it poped we didnt notice until we was done when he pulledbit out only like 4 drops felled on my sheets he said he dnt know if he did *** in me or not but the next day i have cramps & a feelin like i got erflies in my tummy & i been burping and been real tired im soo confused and need help