I had unprotected sex about a two almost three weeks ago using the pull out method and I forgot take my birth control TWICE so it was ineffective. I was suppose to get my period two days ago but I took THREE PREGNANCY TEST.. all negative but I still have no period and I’m worried maybe I took it too early. I’ve changed my diet to a vegan diet and it was awhile before I had sex before that ( almost a whole year ) so I thought maybe that could’ve affected and I’m stressed about being pregnant so maybe that’s what affected me.. IM FREAKIN OUT

What should I do ?? Any advice ? Should I be worried ?