BFN but still want to be in

Laura 🇬🇧
Just taken a test and another BFN. It's hard for me to know if I've tested too early because my cycles vary between 30 and 35 days. Today is CD29. Have very sore and swollen boobs so I was convinced it would be positive. The test said on box could be used up to 4 days early so I think it would have shown up today if i was pregnant. I'll try again in 2 days.
I have a nice family day planned today so I wish I'd just waited. It's hard to shake the disappointment isn't it. Good luck to everyone else out there x