In the month of july I got my periods on 27th. And had protected sex with condom on august 7th-8th. On august 25th I got my periods which lasted for 2-3 days. After that I didn't involve in sex. But september month I have missed my period which is expected to be on 23rd. So I did beta hcg blood test on 28th september, it was less than 2miu/ml and check on abdominal ultrasound also but nothing was shown. On 30th september doctor gave me norethisterone 15 mg for 5 days. On 8th of october I did beta hcg blood test again it was less than 2 miu/ml and on 9th october I got my withdrawal bleeding which lasted for 2-3 days. 1. Does this mean negative pregnancy? 2. Do I need to do pregnancy test again? 3. If negative then when can I expect my natural periods please reply. Thank you.