My Period Ended Jan 21st. On The 26th I Had

My period ended Jan 21st. On the 26th I had to take Ella, because the condom came off. Feb 14th was supposed to be my start date but it never came. On Feb 20th I took a pregnancy test and it came out negative, followed up on the 27th and it was still negative. No signs of early pregnancy, it is day 46 with no period and two neg tests