Pregnant?

So I miscarried on June 26th with misoprostol. Last Sunday we had sex twice in one day and then again once in Tuesday

Could this be the remaining hormones from my miscarriage? Or am I pregnant? My boobs just started to be sore in a specific area today that I noticed also. My midwife said on June 24th that my hormone level had dropped to around 46,000. Could I had already gone down to 0?