Bleeding?

So I just had sex about an hour ago, I'm 25 weeks pregnant. I just went to the bathroom and there's like the smallest tint of red or brown, I can't tell. My SO fingered me so could it be from that, like maybe he cut me on the inside on accident or something? I haven't had any bleeding at all my whole pregnancy so this really scares me. I don't have any cramping or anything like that, what should I do?