I have two unrelated questions. The first is: how soon would I be able to tell that I was pregnant/how soon would my period stop if I was pregnant. I'm on Loestrin 24 and I use it basically perfectly, but I worry every month that I am pregnant, so this month is no exception. I'm in a long-distance relationship, so the first time I had sex this pack of BC was October 8th and the last time I had sex with October 12th. I am on my second day of placebo pills, and I have yet to get my period. Should I worry about my so-far missing period? They usually come the second day of my placebo pills. Would my period even be missing, even if I was pregnant, since the implantation would have happened so recently? Does this question even make sense?
My second question is about UTI. I got one around October 9th, and it was the first one I've ever had. I'm wondering if there is anything I can do to prevent it, since it was terrible. Specifically I'm wondering if the fact that I completely shaved my pubic hair before October 8th (meaning I had no pubic hair when I got the UTI) caused the UTI? This sounds ridiculous even as I'm typing it, but does pubic hair keep bacteria out of my vagina?
Also, would the antibiotics I was on because of my UTI have anything to do with my absent period? I'm obviously fishing for an answer, I'm just terrified I'm pregnant.