Period late by 1 day

So my period is late by 1 day and I’m terrified to test. My husband just had a vasectomy reversal about 2 and a half months ago. 2 weeks after his reversal, I was ovulating so we tried.. no success. Then, month 1, we tried, I tested, no positive. This is the third time we were able to try while I was ovulating. The first two times, I used an app to track ovulation. This third time, I took an ovulation test and got the solid smiley the day I tested. I am so anxious because I want to conceive so badly. Anyone else have experience with positive pregnancy post reversal?