confused????

so Oct was my first period since having my daughter (breastfed baby, the nurse said that shouldn't matter))) and it lasted 4days as you can see but fooled around on my last day of ovulation and by my glow app I'm late my doctor's nurse said that IF i don't get my period at the end of this month to call back and we will go from their and all the test i took they came back negative (((( I'm i testing to early for it to pop up positive seeing that it hasn't even been 3wks since we fooled around)))) should i wait and see if my period comes next month and THEN test or what HELP me out ladies I'm soo confused I've been cramping like my period is coming but it never does 😩