Can some help

Amanda • I am 32 and my husband and i are ttc our first child. We have been ttc for 14 years now. I am taking prenatal, vitex, flaxseed Oil, black and fertilitea. I was also diagnosed with PCOS.
I have been very nauseous and feeling off. This morning I took a pregnancy test strip from eBay and It came out negative. I also checked my cervix it was low soft and super wet with egg white/clear and super stretchy. I am 17 dpo on cd 29. Can some help me to understand what's going on with me thank u everyone baby dust to u all