TMI warning...I am 7 weeks postpartum. i stopped bleeding at 4 weeks PP. We've done the deed a few…

TMI warning...I am 7 weeks postpartum. i stopped bleeding at 4 weeks PP. We've done the deed a few times before my 6 week checkup (yeah, I know... bad idea.) Today was the second time I've spotted over the past 3 weeks and the blood disappears after just 1 wipe. Does it sound like I might be pregnant again? my dr said to take a pregnancy test in about 1.5 weeks but I just want some opinions, please!