I am 42, had a tubal reversal 7 years ago and now for the first time in my life i'm late on my period. I am always on time and I monitor my period every month. I always start between day 23 and 25 with some spotting the day before. I am now on day 29 with no signs of anything coming except I have had some cramps. Also this week I've experienced swollen feet and ankles (which I never have), frequent urination, heart palpitations, constipation and some heart burn. I took a home pregnancy test this morning and the result was negative. I'm guessing this can either be perimenopause - though my only symptom is the late period or I'm pregnant with a false negative test. Any thoughts?