Hi, I am having white liquid CM which is increasing day by day. I feel wet as if I'm on my periods. My period is 2 days overdue. I don't feel nauseous but I have very very mild cramps/ache for few mins in a day unlike period cramps that I usually used to have. I have knee pain on and off. Extremely tired and sleepy all day long. Headache on and off. Slight back aches since 8 dpo but since a couple of days it has increased. My body temp has increased.  Have slight heartburn now. I tested 2 days before the period and it came out negative. And now I'm nervous to test again fearing the negative. Please help.