Im 19dpo no period last month late this month

Joelauna • I`m 26yrs old and Married. I have a 7 yr old, and ttc #2. I also have PCOS.
My husband and I r TTC for #2 but I have PCOS, I am currently 19DPO, my period never came last month and it is already late this month, I took a BPT (Blood Pregnancy Test) last month on the 20th, at 8 DPO which came back negative, this Morning I took an HPT and I saw a Very faint Positive line, and Posted the picture seen below. I have been told it is an Evap line and it might be. I had the same thing happen to me in April and it continued to Mid May, when my period finally started on its due date. But this month seems Different, I dnt know which test to trust the BPT or the HPT, being as I have PCOS I know due to horomones being out of whack I can get a false negative or a false positive, honestly I dnt know what to do. It is stressing me out majorly. When I was pregnant with my now 7yr old Daughter, I had false negative HPTs, with a regular period for 2months, but I felt something was off in my body and due to genetics I was kinda flipping out a lil, so I went and got an ultrasound and to my surprise I was just over 9wks pregnant. As for now, I feel nauseous, and tired constantly, my breasts r sore, and Im constantly running to the bathroom it seems, but I have little to no cramping, compared to what my symptoms are like going into my period. So I dnt know what to do, should I wait for this week to pass and take another HPT if my period doesnt start? Or should I go with the BPT from last month?