Anyone else please?!!!

Has anyone ever got their first positive a week late for their period? I’m currently 3 days late, craving fish and chips (I never like fish and chips)! My boobs are extremely heavy and veiny, I have hardly any cramps, more like stretching and tingling nipples! We already thought we had one faint positive (very faint for 20miu ) but the line disappeared after 10-15 mins (it was positive within the 5 mins) we just don’t want to get our hopes up, tested again at 25miu and nothing was there, I’m never late. Just scared to test for more negatives now :(