Late period but only 13dpo

Rebecca

Got a positive ovulation test on day 16 , normally get it on day 15. period normally arrives on day 27 or 28 today I’m on day 29 still no af, have a few period cramps now and again and I have sore boobs on day 27 for 5 min , still getting negitive tests but I always think I see something but has no colour , am I still testing to soon even though I’m late ? I’m 13dpo today