13 dpo

I’m 13 dpo and I discovered white thick kinda dry discharge that I haven’t seen before or remember gotten. I took a test on Saturday 11dpo and it was negative. I also been having lower abdominal pain and constipation, leg sores, nauseas and mood swings sometimes my breast hurt. I’m supposed to get my period in 2 days 😣. Are these signs that I’m getting my period or could be pregnancy symptoms!