what's safe to eat at Mcdonalds

Mama

I'm 15weeks, 5 days and have major cravings for mcdonalds... I would love a big mac, fries and hotcakes with syrup and whipped butter!!!!!! I havent eaten any take out the Past 10 weeks but now I'm finding it hard to resist...... Has anyone else given in to mcdonalds? I'm most worried about a) big mac lettuce, b) big mac sauce, c) whipped butter... my doc appointment isn't for a few weeks so i don't have anyone professional to ask :( :( advise please