My 9 week old DS HATES tummy time and cries and screams from the second we put him down to the second we pick him up
and even then he doesnt stop since he is so worked up. My DH and I are to blame because we didnt consistently do tummy time from the start (he had a bris a week after he was born and had a bit of trouble with his umbilical cord stump, so we were waiting for everything to heal). We started doing it around the one month mark, but not nearly as consistently as we should have. We just forgot with everything else to do and when we did do it, he screamed so much we would scoop him right up. Bad (first time) parents. 
So not surprisingly, at our 2 month appt, the pediatrician told us he had to spend more time on his tummy b/c he could barely lift his head up. He is also a very big baby (17lbs at 2 months), so our pediatrician said it would be that much harder for him to lift his head (as well as to roll over) since he has more mass to lift.
We have been doing it for a few minutes every day since, but it is just awful. Logically, I know he is simply not used to it and it will soon get better (right?!), he isnt getting hurt by it and a little crying isnt going to hurt him and that its probably bothering me a whole lot more than him. That said, has anyone who has been thru this have any advice to maybe make it more bearable for both of us or at least some my kid also hated it, but now loves it (or at least doesnt despise it) success stories? It is the worst part of our day. Thanks!!