Linea Nigra Pain?

Vi

repeat customers pls advise:

15+5 and i think my linea nigra is coming in, i think this because theres a stretchy kind of pain right down the center of my belly, feels like i over-stretched during warmups or something when im just laying comfortably in bed.

i dont think its round ligament pain bc thats been more towards my sides and this is straight down the middle.

1) is this the time frame it begins to form?

2) is it supposed to hurt?

tyfys