Mommas! Birthcontrol question! I'm on the mini-pill since I am still nursing my 8 month old. But…

Mommas! Birthcontrol question! I'm on the mini-pill since I am still nursing my 8 month old. But recently I have had awful cramping and some spotting and a lot of gas. Is this abnormal side effect? My doctor can't see me til next week and it's not severe enough to warrant an ER visit. (I'm the kind of person to not go til I am actually on my death bed). Any help is welcome!