Ttc help!!!

Christina
Hi all I'm new to ttc I have 2 little girls that we weren't ttc. Now that I am ttc I am 10 days late on af. It was suppose to be July 2nd and it doesn't look like af is going to show. I had a little spotting 4 days before af was suppose to show up. I have very few symtoms. With my 2 little ones I didn't have any pregnancy sysmptoms other than late af. All pregnancy tests are bfn. Anybody have a similar experience or have any opinions I'm all ears lol. Should I wait til the end of the month a retest or go to the doc and get a blood test? I'm never late my af is like clock work!!! Thanks in advance