Can someone please please help me ?

[Nichola12345]

I have had my time of month at 20/8/15 and I am usually regular but just this week me and my husband decided to try for a baby and we have unprotected sex 4 days ago and I have been bleeding for three day but not like a normal period normally I suffer so I know it's not that but I'm a bit worried as to what it could be surly It can't be implantation ? Or can it im not the kind of person to talk on this but I feel like if I tell someone they mite think I'm mad lol xx