Opinions....

okay so I had unprotected sex December 9th and he pulled out in plenty of time and I’m on birth control. Well my period was supposed to start the 16th.. it never came on so I took 2 pregnancy test and they were negative. I started getting a sinus infection so went to the doctor & long story short they did a urine pregnancy test and a blood pregnancy test on me 5 days after my missed period and it was negative. It’s the 28th and I’m 12 days late. I’m not sure if I’m just overthinking everything or what.