Hi mamsh! Ah, I totally understand, first time using something new can be confusing talaga!
Since Eveprim may specific instructions with that syringe, please check the leaflet that came with it muna, or better yet, call your OB or pharmacist, they can walk you through it step-by-step to make sure you're doing it right. A few of us moms in my circle always ask our doctors directly when we're unsure, kasi bawat product may kanya-kanyang technique, di ba?
You've got this, mommy! Don't hesitate to reach out to your healthcare provider, yan ang safest way.