9 days late

Got off birth control first week of June and haven’t had a period since end of May (not counting withdrawal bleeding in June idk if that counts) but now I’m 9 days late and took a pregnancy test the first day I missed my period but Idk if I should take another one?? I have been having unprotected sex because we want a baby. Can it be my body waiting to get its cycle back in order?? I feel like I haven’t had a period in forever! How long does it take to get it back??