maybe I'm overreacting, Help!

Okay so, my man and me had sex the 22nd of December and we use protection, he cummed in the condom but at the moment of pulling out, I realized the condom was half way out and the rest still inside me, so idk if there is a huge possibility of me being pregnant, cause I've been having irregular periods, and we've been talking and he is confident nothing leaked inside me, but I literately skipped the whole month of December, According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">EVE</a>, I was due the 30th, but nothing, technically I'm 3 days late.
UPDATE: I took 2 tests and both of them were negative 🙌🏻 but my period is still not here.