Ttc is driving me crazy

My boyfriend and I have been ttc for 6 months and nothing so far we both want a baby so bad it's so frustrating and I feel like I jinks myself every month by doing the same thing my dr told me to try having sex every other day but we are very sexual people sometimes it works some times it doesn't af is due tomorrow I haven't had any cramps except for a weird one like 4 days ago that was not a normal period cramp and my boobs are sore around the out side and under them I just want this so bad ugh!