Not ttc 16 days late.

Naomi • 19💗| IL🌽 |

Okay so my boyfriend and I used condoms everytime we do oral and after my period ended (the exact moment when it was done) we decided to try to have sex. He put the condom on and tried to put the tip in all the way but never did because I was afraid. He never ejaculated inside of me or had any precum. I took 4 pregnancy test and they all care out negative. I took one this morning and it came back negative. I’m 16 days late. Should I be okay? And I’m sorry if I sound dumb but I need reassurance.