I started my pd 17 days ago for the past week I've been nauseous on and off one of my nipples is sore I've had 2 bouts of diarrhea a few days apart I've also been kind of gassy and I've been having cramps like I would if I were on my period but I'm not due for that for another 13 days. I'm a newlywed and my husband and I have had unprotected sex pretty regularly for the past year should I get a test or is it like heat related or something?