12 days post my trigger shot

Hey y’all! So I’m 12 days past my trigger shot ( took it the 9th) and 11 DPO. I took a test on Sunday and was positive then another yesterday and was negative. This am I saw a VVFL but it was pinkish. Symptoms are super cramping and sensitive nipples. Feel like AF is about to come but not until the 27. Is this good news? Def feel like my period is coming today tho