 [ Symptoms ] implantation bleeding or period  help  i have been having unprotected sex no kind of protection for awhile i have been getting preg symptoms for about 2 weeks now i heard implantation bleeding happens around the time your period starts and my period started today31313 it is very light and a light red than usual i have been having nausea very tierd moody and my breasts are hard and tinder could there be a possibility i am preg or is this just the start of my period  being light and all that [ Disease ] hi instead of an mri or any similar investigations a detailed hormonal assay should be done consult a endocrinologist thanks