[It takes more than to count weeks--pregnancy symptoms may be misinterpreted].
D000006:Abdomen, Acute / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second