Period where are you?

Sheyla

So I was on depo provera since late 2017 took my last shot November 9 2018 was supposed to get a shot In February but didn't so it's been 8 months since I got my last shot or 6 if u wanna count from February I spotted for 3 days in April but that was it no period no more spotting anyway I'm trying to get pregnant I have no idea why my period hasn't came back when I got my first depo shot my period went away and jus been gone since please help