Need suggestions

Fa
Hello guys me and my husband are trying to concieve and I had 28 days cycle this time 8 days period and I had unprotected sex on 5,6,8,10,11,13,14,15,16 day of the cycle and everytimes he comes inside me and sometimes I also ejaculated too today is my 16th day my question is how many chances are there for me to get pregnant??