After baby do you plan to go on birth control?

Alexandria • TTC for 4+ years. Got BFP on 6/15/2015 and estimated due date is 2/6/2016!
It took us just over 4 years to conceive and are now due in February. I'm really torn on what to do after baby is born. I want more kids but I don't want them one right after the other... But I also don't want to have to try for several more years when we decide its time for #2. Fertility can be so unpredictable. What do you ladies plan to do and why?