I took Plan B, and am having frequent urination and light brownish spotting. Is this normal? I ve recently had a medical abortion because of health risks, and would hate to go through this again. Does having a medical abortion make Plan B less effective? I ve taken it 6 days ago, and I m just very worried. I ve taken two negative at home pregnancy tests. I fear it is too early to tell, but I want to know as soon as possible, of course. I didn t see frequent urination as a possible side effect, and am suffering no other symptoms.