Lisa, My daughter was the same way, I did have her in her crib the first week and she slept fine at night, but wanted nothing to do with her crib during the day, so I let her nap in her swing until she showed signs that she was getting disrupted and not sleeping good, then I tried the crib again and she took to it fine, that was at about 3 months, she was getting more on a routine per say and the swing was starting to be more of a fun thing to do, than sleep in it, be patient and don't fret, if she likes the swing than great.
Enjoy your little one!!! they grow so quick, my youngest is turning 1 on Dec 5th, I just can't believe how fast this year went by