Hi ..am 35 yrs old..my cycle began on 3 rd August 2012 , though on 1 st August 2102, i had noticed pinhead sized blood spots on the tissue . That month roughly from 6-10 , i was on antibiotics because of cold, sore throat . Me and my boyfriend had unprotected sex on 13 th night and again on 27 th night of August. I have not got my menstrual cycle till now.. On 6th sept., and again today , 11 sept, i again noticed pinhead bloodspots on the tissue after wiping. I am having PMS symptoms ( cramping, tingling in nipples) . Is this pregnancy??