Pressure on cervix. Eta?

Katie • Pregnant with first. Due 3/14/18. (Freaking out yet excited!)

Question! I know every birth is different, but I’m having such strong, fleeting moments of pressure on my cervix which makes me think labor is coming soon.

Pressure lasts for like ~5 seconds at a time and has been happening every few minutes. Nothing else seems to be happening (no sight of mucus plug, no leaking fluid, etc.)

Thoughts and opinions? Anyone else experience this? How much time from this type of feeling to when you’re in active labor?