I have very irregular periods and i haven't gotten one since March around this time. Last Thursday my husband and I had sex and then we did again yesterday. When we were done yesterday I noticed brown spots on the bed and it kinda freaked me out. Could it be old blood from March or could it be implantation? I haven't had any brown discharge since but tonight I started having mild cramping that's more uncomfortable than painful.. we have been trying to conceive for a year now but I don't want to get my hopes up. Thank you in advance to anyone who responds