Yes.  An employee's incapacity to work due to pregnancy is a serious health condition under the FMLA as both federal regulations and court decisions have recognized.  29 CFR 825.114(a)(2)(ii); Aubuchon v. Knauf Fiberglass, 359 F.3d 950, 951 (7th Cir. 2004). 

Lexington, Kentucky FMLA lawyer Robert Abell represents individuals and employees in cases regarding their rights under the FMLA; contact him at 859-254-7076.