question about mc

hey, so end of July I had a mc. I didn't realize I had one until beginning of September when my period restarted itself and my hcg was 3.6 I'm still feeling 100% pregnant. even though I'm not. Like I'm almost always nauseous and I get the worse heart burn. i feel bloated to the point where if i ptess my belky against skmething its tight and hurts a bit. my hormomones are still wired because I'm really moody and irritable. my boobs feel funny. And I bled a little after I masturbated is it actually possible to be pregnant without having the hcg tests come back pos