Please help!

Okay so i had a miscarriage 8 weeks ago, and 3 days after my bleeding stopped 2 tests confirmed it was negative, and a test at a&e aswell as nothing on the scan or internal scan.

So after my miscarriage, my boobs stopped hurting completely, my moods were okay, i didnt feel nauseous anymore, as expected, but its been 8 weeks now, and still no sign of my period, i havent taken a test yet, i will be doing as soon as i get paid, i just need your opinions. So for the last week or two my boobs have been so sore like i cant wear a bra kind of sore (how they was when i was pregnant) and my moods have been so bad, like in work i cried about being put on the drivethrough? Like i dont understand, im thinking it could just be my hormones, me and my boyfriend have been sexually active but the last time he came inside was before my m/c bleeding, i also had spotting about 3 weeks ago, i dont know, its so confusing im trying really hard to not get stressed 😢☹️

Is it possible to be pregnant without a proper cycle after a miscarriage?