How long before testing again?????

Nicole • ✨TTC #1 since 10/1/18✨👼🏻

I just took a first response and I didn’t see a second line 😭 today is my second day with no

period. I’ve been extremely nauseous on and off all day since this past Sunday actually throwing up twice so far. I’ve been having back cramping but no period cramps, the nausea/vomiting, been wobbly a few times in the morning getting out of bed after laying awake a little bit. I have a 2 pack of tests so I have a digital first response left still but don’t know how many days I should wait to make sure my period just isn’t late so I’m not wasting away my money. Someone please help how many days after a missed period did you finally get positive results? I just feel so off this month and I BD three times in my fertile window. My last period was April 25th and lasted 5 days and I’m pretty regular on a 28 day cycle.