Intermittent dosing SSRIs vs Birth Control?

I just started a generic of Yaz (Nikki) yesterday after speaking with my OBGYN about treating PMDD. She said I could try birth control or consider something like Zoloft. I chose bc because I’m more familiar with it and because I don’t feel like I need to be on SSRIs constantly, just around the weeks of my period.

However, I just read online that it’s safe and effective to only take SSRIs certain times of the month. This could be a feasible option, but I would love some insight on how to consider the choice of which one might be better. What factors should I be considering? Thank you for any advice:)