trying to convince

Jamie • Expecting baby #1 March 24, 2018!! Firefighter 👩‍🚒 EMT 🚨 Couldn't ask for a better husband!!
Me and my husband just recently decided to start trying for a baby. My cycles are somewhat short and I only have 17-20 days between periods. Does this mean I will have to wait until I miss a period to test? Or I would I still be able to test a few days before my "missed period" and get results?