I had sex with my boyfriend for the first time without any protection on day 23 in my cycle but it only takes a few second once his penis get into my vagina then we pull off. After 2 days, I feel like I'm always want to go pee but there nothing when in the toilet. And I don't have any other symptom like they always say like tender breat, nausea and so on. Do I having any pregnancy symptom?