Hello Dr., my menses have been late by 5 days now. I have this continuous and mild cramp in my lower abdomen. Initially, I d them in the right side mostly for days but now, it s difficult to pin point the side. I have a 30-31 days cycle and last month I bled on 18th April. This month on 6th May I had this sharp pain in the central portion of the lower abdomen which stayed till 30 minutes or so. Also I had sex once on 29th April using a condom. Is there something to worry? Am I pregnant? P.s. I had done two Home pregnancy tests, one on 18th and another on 19th..both negative.