Never a blazing test line

So this is my first pregnancy and a week ago today I took a cheap one which was a vvvfl and a Clearblue digital which said pregnant. I don’t have my first midwife appointment until 12/11 and according to the apps I’m 6 weeks, so as you can imagine it’s a bit of a wait until my appointment so I’ve been testing more or less every other day, however, my test line never gets a blazing positive like I have seen. Tonight’s is the strongest it’s probably been and I still wouldn’t say it’s strong. Should I be worried at all? X