HELP!!!!

i had unprotected sex 3x on the 4th of July. He didn’t cum inside me buuuut on the last time we had sex i don’t believe he pulled out quick enough. i used the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> to predict when my next period was gonna be and it said July 5th. i still haven’t had my period, which makes me 5 days late on my period. could i be pregnant?