first time paranoria?

so i just had sex for the first time about like 4 days ago and everything went well , i told him to pull out and i think he did? but i’m not positive and according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> this is my fertile period— we used a condom and it didn’t break but there’s always a chance, am i just being paranoid? or do i have a good reason to be. also, after we had sex he was getting a little busy on me down there and i guess i wasn’t wet enough and it made my vagina hurt and feel like it was chafed for a few days— how do i get wetter faster?