What to do next?

I tested on Saturday and yesterday, and yesterday’s test is darker than Saturday’s and I know HCG doubles every 24 hours. I’ve been getting mild to period-like cramps on and off for about a week leading up to now, i don’t feel that much cramps anymore but I heard it was normal. This would be my first child, but I’m kinda on edge and nervous as I’ve had 3 chemical pregnancies last year (Feb, April, & Sept). I’m so nervous for this one. I was told that my body was fine after getting tests and sometimes it just happens. I just want this to be a sticky bean. My period is supposed to be between Cycle day 26-28 since it varies every month, this month it’s supposed to come on Wednesday (July 17) but since I tested early and gotten positives, and it’s still progressing, I’m just nervous because I really do want this baby to stick. I was wondering what should I do now? Should I make an appointment? Or wait?