Nit getting pregnancy. In 2 mnth also.

Hello, I have completed my marriage around 6 months. We had pregnancy in 2 month but due to some reasons bleeding happened after 1 month later..so it's around 3 months completed and from 4 month again we started trying for pregnancy it's been last 2 months. We used to participating regularly in sex and more ever in periods time 12-18 days(6 days) daily twice and divided 12 hours time slots into two slots daily and participated one time per first 12 hours and 1 time per next 12 hours..I means we have participated 12 times in 12-18 days and remaining days one time per day but not getting pregnancy..if we both having any problems then we won't get the pregnancy in 2 mnth also.I hope something is missing. Can you suggest me your good suggestions as a mother of child not like doctor.becauase if someone consult for suggestion in this app they were told to meet as personally for treatment. I request you to don't treat like as a commercial doctor you can give your suggestions a mother of son.