Taking unwanted 72 within 48 hrs gives protection more than 85% against unwanted pregnancy
You got lighter bleeding on 24th April due to withdrawal effect of the pill. It is quite common and normal thing. Next period may be delayed or earlier due to hormonal
imbalance and mental stress
In case of period delayed more than 7 days, you should undergo one home pregnancy test initially and one blood test
for beta-hcg to confirm the same. Following test report, you can consult with your doctor.
Be well and practice safe sex in future.