Each spouse is entitled, to the extent possible, to continue enjoying the same standard of living that was enjoyed during the marriage---the payment from a financially advantaged spouse to a financially disadvantaged spouse is "alimony
". However, the amount and duration of alimony is also determined, in part, based on the length of the marriage. So, for a short-term marriage (e.g. 3.5 years), a spouse would typically be entitled to collect only a small amount of alimony for a short period of time. In other words, you can typically expect to have to pay a little something for a short while, but you are not going to "lose your shirt".
Child support is based on the earnings of the parents and the percentage time spent with each parent, so "yes" you can generally expect to have to pay child support. If you have the child 50% of the time, that won't break you either... also, keep in mind that you do not have to pay for the child when she is out of your custody quite like you would in your custody and the money that is paid is "for the child", so the overall expense would not be overbearing.
You would do well to at least consult with a family law attorney to go over your earnings and discuss what a realistic support payment would look like, but the situation is not going to look anything like what it would if this was a 20 year marriage, if you had multiple kids, or if the other parent had primary physical custody.
I hope that this helps you to understand the law in your situation. Let me know if I may be of further assistance. Thank you.