I got pregnant with my daughter when my son was 2 months old, so pregnancy is definitely a possibility:) Maybe try using a different brand for your next test just to be sure it's not just the test being wonky. Two weeks late seems like plenty of time passed to start taking pregnancy tests though.
@robinhoodlum22 I have had all my periods around the same time since I have had him and the only reason I am scared is I got pregnant with my other son when his mother was 4 months