How many times a day and how many days in a row have you had sex and conceived

Natasha • I`m 25 years old, I had excision surgery for stage 4 endometriosis in October 2016. Endo already growing back due to trying for baby. Husband has testicular failure. Looking for positivity 💞
To those of you who are expecting or who have had. When you were trying how many days out of your fertile window did you have sex and how many times a day. How long did you try before you were successful?