FTM question

Marisssa 🌙 • PME 07•04•16 👧🏼💜 | SSE 03•31•18 👶🏼💙 Traveler. | Lover. | FreeSpirit. | In Love.
Lost my mucus plug this morning followed by severe contractions that only last 8-10 minutes then they've been coming in spurts, when should I head over to L&D?