I bought those cheap ovulation strips (OPK) and conceived my 2 boys.
Learn it from someone too.
So let's say if your average menstrual cycle is 28 days, it means you ovulate around day 14.
Mine is 32 days, so which means I ovulate around day 16.
To give the best chance of getting pregnant, so from day 16 onwards, I will test twice a day, morning and night before I go to bed.
If the strip appear to have double lines, most likely ovulation will start within the next 12 to 36 hours.
By right, male sperms swim faster than female sperms. So if you have intercourse before or very near to the ovulation,
high possibility to conceive a boy.