TTC is frustrating

Started spotting today so not only am I going to get my period this month but it's also coming a few days early. I just want to know why it's taking me awhile to conceive 😩😩😩. My bestfriend has a 4 month old and is already 5 weeks pregnant, again, she needs to pass some baby dust to me. I'm starting to get discouraged again. 😭