I had unprotected sex on a Friday and got my period Sunday. It is verry light. Is there still a chance I can be pregnant?

Yes, having sex so close to a period, if you are pregnant it can come but be light and not last as long. While of course the "odds" are against it, it is possible, there is no way to test at this point. So you will need to wait till you either have ( or miss) your next period, if you miss it, then you will wait one week after and test. ** use first urine of the morning please for best results

This is only my second day since having unprotected sex. When will I start to get morning sickness?
When should I take a pregnancy test?