I did not have sexual intercourse with my boyfriend...we are very careful with what we do...one of us atleast has clothes on and if we touch eachothers parts we would always wash them...I am scared incase I am pregant because i was bleeding heavy like a normal period for 3 days and got it the day I was expected to get it....my period is usually longer and I started getting worried and thinking of implantation bleeding ....I know that's light spotting but mine was red and heavy and got blood clots a few times but I visited my doctor the morning my period started because my pains were severe and he put me on mefac500mg and I know that reduces blood loss so could that be the reason or am I pregnant???and I just went toilet tonight and there was some red and brown discharge and today I wasn't bleeding today atall(today is the 4th day of my period) so do u think it's the tablets or pregnancy and I know I see a lot of stuff on the internet about getting pregnant different ways but can u explain how pregancy happens properaly and not many other ways thank you