We did intercourse on 30 august without protection. My wife next period was 15th September Then after I given her Ipill within 12 hrs of intercourse and her next period came properly date 12th September, but 3rd October she had vomited, then after she checked through home urine test, but it's came negative but now she delay in period so I did serum b HCG report and result is less then 2, please advise we don't want kid as of now.