I am now 19 days late. Negative after negative after negative test. I am taking folic acid as well. Etc. Are there any other mommas out there that didn’t get a positive till later? And how late? I’m scheduled for a blood test now, so I guess we will see. I’m hoping this is it for me. I got off the birth control patch three months ago as well. Regular periods showed on time every month—the last period May 15 for six days.