Birth control and missed period question

So last year I was on birth conrol the 2 months injections my first shot was in September and my second shot was in November Then I decided that it should be my least shot I didn’t go for my next injection so I’m off birth control for 5 months now going on 6

While I was on birth control I didn’t see any signs of discharge since I stopped birth control I started getting discharge

I’ve been getting periods for 7 days every month I have a 32 day cycle

But my last period was in march a week later it’s April for during my fertile window I’ve had unprotected sex literally the whole week 13 days after ovulation my period was due but now I haven’t gotten my period in April and may I’m 6 weeks late I took a pregnancy test when I was 7 days late it was negative and I took another when I was 4 weeks late but I was told that the pregnancy test is an indent invalid and negative I’ve had quite a few symptoms i didn’t get implantation bleeding or any spotting but I do get discharge like literally almost everyday so I’m confuse is it possible that I might be pregnant or is it just a missed period