Dear Sir/Madam, I was suffering from cold and typhoid fever and I was taking some medicine for treatment. It was 40th days, my menstrual cycle was not occurring, when I used ‘prega news pregnancy test kit’ (a urine pregnancy test) but result was in negative. After seven days of the first test I took second test but it was also in negating. Could having pills for the treatment of typhoid fever cause for too late menstrual cycle? Should I take ‘Unwanted kit’ to prevent pregnancy? Thank you.