I’m never late!!

Okay y’all... I am now 4 days late to my period and I AM NEVER THIS LATE! I’m getting married in February and if I’m pregnant I’ll be 14 weeks at my wedding 😅 I want another baby so bad but I really don’t want to get married looking like a bloated mess! I’ve been testing every day now sometime twice a day and I keep getting nothing but I’m testing on those super cheap ones from Amazon. I got a better test frik Walmart but I’m too cheap to buy the name brand 😂 I got a SUPER SUPER faint like within the time frame but it’s not dark enough to see if you just glance at it. Should I give in and buy a better test? Or should I just wait?