Here’s the IVF Process Step-by-Step. SAVE THIS POST for later! Step 1: Call the office on day 1 of your period (the first day of full flow). Step 2: Come into the office on cycle day 2 or 3 for a baseline ultrasound and blood work to make sure you’re ready to start stimulation. Step 3: Start IVF medications and take them for 10-12 days on average to make the eggs grow. Step 4: Once the eggs are ready, take your trigger shot. This medication helps trigger ovulation and prepare the eggs for retrie