Hii. I M On My Fertility Treatment.staryed On 26th Feb

Hii. I m on my fertility treatment.staryed on 26th feb with hmg injection and altered day my gynac done ultrasound on 10 march my follicle size were 19& 18 .dr give me hcg 10000 i.u injection after that we have sex every alter day. I check my hpt on 23 its negative and i again check on today 26 its again negative .n i m taking duphaston from 13 feb. N stop befor 3 days. Can u suggeat me that there is chance of pregnancy or not??