Hellppp

On 12/10 I had a D&C done because my baby stopped developing at 10 weeks. I bleed for about a day and a half and felt absolutely fine no cramping no nothing. Since I stopped bleeding and I felt fine my husband and I ended up having sex and he cumed in me alot 4 days after the surgery. 2 weeks after the D&C I noticed light spotting and now my breast are leaking milk. I'm so worried I might pregnant I don't know if I take a pregnancy test will it be accurate or false. Or is it my body realizing it's no longer pregnant. I have two sons already and not even pregnant with them did my body produce milk. So I'm very shocked and wondering what's going on.