1-Red lehenga (looking like orange but its not ) 2- pink more on heavier side 3- ivory

I always want to be a unique bride and always wanted to wear saree for my reception but as per my mother in law she told me not to wear saree, now I have two lehanga one in pink colour one in ivory colour and I'm confused what lehnga should I wear as per indian weddings , i have three fubctions phere,sangeet ,reception family telling me to wear pink lahanga what should i do, should i wear a saree /or lehnga, Ivory? Pink?