12dpo, 13 dpt! HELPP!!

ZT

Hi. I had my trigger shot 5000iu 13 days ago. Got a faint positive 9dpt followed by a negative beta hcg on 10 dpt (hcg 2.1). However, today and yesterday, I poas cheapie and got a vvvv faint line that darkened as the test dried! In previous months I have NEVER had any line on these no matter when I checked these tests. This time, the lines keep showing up and I dont know if its an evap or what! Been having weird cramps (not like AF). AF due in 2 days! Been ttc for 2 years now :(