Are these possible symtoms ??

Been TTC for about 2 months. About 2 or more weeks ago I started getting discomfort in my lower back mostly also around the sides of my stomach. Iv also have a lot of gas and have been constipated or going to the bathroom more than 2x a day. Iv been passing out early for bed almost every night now and have been tired during the day even though I get a full night sleep. Iv been experiencing nausea as well as Having a lot of head aches and noticed more discharge lately the one day it leaked all the way through to my jeans. Also been feeling butterflies for the 2 weeks as well. My period is due Friday according to glow and I know some of these are pms symtoms but it wouldn't be going on for 2+ weeks. I haven't even started my period cramping which gets so bad I curl up in a ball. Could I possibly be pregnant??