How little is to little

Jenna • We had our first baby girl September 21 2015 👑 she's our world! Now we're expecting baby number 2 in Sep!!
My husband and I have sporting tickets for October. We bought these tickets for a game back in May but it got rained out and rescheduled to October. 
I'm 39 weeks if our daughter comes on her due date she'll be a month an few days old.
I was going to leave her with my mom but I'm hoping to be breastfeeding and I'm afraid if she's get a bottle she won't want to go back my breast. 
Do you think she'll be to little to go to a sporting game?