I am a FNP. My clinical experience was in a family practice, rural setting, then a family/internal medicine practice. I arranged the clinical for the fam/internal practice. However, some of the other students went to the health department, did alot of women's health, paps, STD treatment.
Think about a clinical rotation in an ob/gyn office and see if you might like that setting after graduation. If you would like to deliver the babies, do a mid-wife program.
The nice thing about being a FNP is that you can get exposure to many settings and then decide where you want to work. We are more marketable than an ANP since we can see everyone.
I think your experience in ICU and L&D would look fine on your resume. I would not change your employment department now since you will be entering school in a few months and you will not be able to work many hours. The FNP program is difficult, alot of studying, keep your job simple with an area you are familiar with already.