Help!!

Crystal
Hello everyone so my hubby and I just got married June 18 and since that day we have been trying to get pregnant, I believe I was on my fertil window that week, anyways I was supposed to have my period July 06 but it's already the 22 and I still haven't got my period I took 4 pregnancy test 3 or 4 days apart of each other and all of them came out negative 😞 so I don't know what can possibly be wrong I mean I have never been this late well maybe 5 or 6 days but 2 weeks!! It's a lot I have never been on pill or any other contraceptive besides condom once in a while oh by the way this past 3 days I had a little bit of spotting well just when I wipe it's like pinkish or brownish but that's it, has this happened to any of y'all before?  Is there a possibility of being pregnant even if the pregnancy test was negative?