Positive clearblue digital opk 3 days in a row

Melanie • 29yrs - TTC 6months ago- never used birth control
Im testing each day at the same time (2:30 pm) we BD on Thursday (no smiley) negative opks for friday and saturday (no BD) got my first smiley on sunday we BD, i got my second on monday we BD. I just got my 3rd smiley And a temp shift this morning but DH is away for the next few days. are we covered? This TTC things is getting on my nerves... Any opinin is appreciated.