Just wondering if this is common while on the pill...I recently switched from Trinessa to Yasmin and back to Trinessa. This is my 3rd month back on Trinessa and I've noticed for the past 2 months somewhere around Day 9 of my pills (I'm a Sunday starter) I get a little crampy and have dull lower backaches. Last month it happened on and off right up to my period, which comes on Day 23 of my pills. Is my body still adjusting back to the Trinessa? Or is this just something that can happen after being on bc for quite a few years? I thought ovulation stops while you're on bc?