Me and my girlfriend had protected sex on the 20th of March and 27th of March, we also did the pull-out method even after having a condom on , her usual date of periods are around 28-29th of every month, after 3rd April we felt we should do test and we did the urine
pregnancy test on the 5th of April , the test was clearly negative , is there any chance of pregnancy? (All the important steps during the test were considered such as the urine should be morning urine , etc)
If there is a chance of pregnancy what should we do to avoid the surgical method of birth control?