i have a very regular period every 28 days for 4 days sometimes 5 days long. i have recently gotten my period a day early and it was normal flow for 2 days then became so light for 2 days it was like i never had it, but during these 2 light days i had pain urinating and it wasnt a serious infection because it went out within 24 hours. after the pain went away i had my period for one more day with normal flow and it ended. now the pain comes and goes when i use the bathroom. the week before any of this i had sex with my partner and it was pretty rough. i have also not feeling like myself. im not experiencing early pregnancy signs, but he has noticed ive had many mood swings within the past 2 days. could i be pregant or have a uti possible or is it still from the intense sex i had?