you should probably wait.. but LSA can be stacked day after day, unlike LSD - LSA comes in edible seeds. if these seeds were consumed day after day as a ritual meal, it would be thought the trip could continue for many days.. here in the modern world , maybe not so..
Although I had some good times on LSA, I would never stack it or do it twice even in the same week. I'm always totally exhausted at the end of a single trip and need a week to recover. Maybe that's because I like to do high doses, 16 or more seeds.
I find you only get good trips if you leave it a couple of weeks at a time, if i were to have seeds on the Friday and again a week later its usually alot more mild than if i waited an extra week, everyone's different though.