I'm scared

I just had a medical abortion a couple of weeks ago, but it seems not everything went right, like I still have a bit left in me, so now the want to go remove it surgically to stop me getting infections and stuff, but the fact it's not gone quite how it was meant to terrifies me, especially since I'm still getting massive crippling cramps sometimes and I'm in work trying to hide it because I cant afford to be off work, and I dont know, I'm just so scared with needing more stuff done