My friend had a medical abortion using mifiprestone and misoprotol...she did an ultrasound few days later to confirm if the drugs worked, it showed there was no sign of pregnancy, two weeks later she had unprotected sex,she used ampliçox the second day after having the sex and prostinor 2 the third day, like 5 days later she had another unprotected sex but this time she used the drugs within 4hrs of having the sex, now she s worried of being pregnant because she hasn t seen her period since she had the abortion which is over a month now, cause she said her stomach is getting big could she be pregnant? She used a pt strip but was negative, pls reply