Newly Pregnant!

So i just found out I’m pregnant today! Super excited. But nervous because I’m probably about 3-4weeks but on jan 10 i was prescribed Bacterium DS for a really bad UTI. I wasn’t given a pregnancy test at the clinic before they gave it to me and i didnt know i was pregnant but I took it twice a day for 10days... my PCP kinda scared me about but should I be worried ladies?!?!