Constipation 💩

Meredith • Mother to my rainbow baby girl 10/21/16 and 1 on the way due 1/4/19 🌈🌈
So I am 12dpo tomorrow (AF due Friday). No BFP yet but very sensitive nipples and constipated like you wouldn't believe. I think I had the same symptoms in last pregnancy (unfortunately MC'd at 7 weeks). 
Anyway I just ate like 5 prunes (gag!) but other than that does anyone have any natural constipation remedies? I have this stuff called "dieter's green tea" which always does the trick but I think it has senna in it and I wasn't sure that was safe, in the event I am pregnant. 
Thanks ladies!Â