Totally confused 4 weeks PP, could I seriously already show a positive test?

Vanessa
So I'm 4 weeks post-partum tomorrow and I gave into my husbands sexual desires Monday, he not only went bare back even though we had condoms but he didn't pull out, which shocked me because he said he was done having kids after this last one. So Tuesday I bought some pregnancy tests and took one to be sure it reflected negative so in a few weeks when I test I would know if I had a positive if it were accurate or possibly false. Anyways I took these bottom two tests today because I started feeling off, the top one I took Tuesday and I now have these faint but clear positives, is it even possible to be accurate just a few days after intercourse? I don't know if I'm supposed to freak out or remain calm and think it's a false positive...