TTC what pregnancy test

Hi ladies we have been trying to conceive for past 3 years, have been to loads consultants and all have told me everything is fine. My period is very regular usually always 26 days, today is day 29 but do not feel pregnant. Had a miscarriage in 2011 and 2013 however I knew from day 1 on both I was pregnant but feel nothing this time. The only thing is I can't hold my urine which is possibly just a uti and had diarrhea for last 3 days. What pregnancy test is the most accurate r am I just living in hope🙏🤞