Maternity Leave Planning

Has anyone here started thinking about ML planning? My manager is asking about it. I shared with her in my 1st trimester as I needed to take time off from work to see gynae right after I came back from a 2 weeks holiday. I felt bad about it and thought that it’s better for me to share with her the reasons so that she understands. Just wondering if anyone here plans to club all types of leaves tgt? I.e 4 months ML + approx 14 ALs + 6 Child care leave altogether to extend the ML? My EDD is 15 July. Thanks