Sos please ): like asap ):

Hi so on April 13 I had sex... no condom.. I know I was stupid but I was in the mood and I wasn’t on birth control... he came in me and right after I took plan B, a day after plan be or a few hours I took it I started getting nauseous and I had some discharge for the next 2 days... which had me thinking it’s working?? So this week everyday at 11:30 I get nauseous for a bit and idk what it is? Could I be pregnant? I know plan b can either bring your period on time, early or a bit late and mine starts like in 3 days? So idk if it’s the plan B hormones still doing its thing? Help please. Yeah I know I need to get on birth control please don’t judge I just need answers