is it normal?....

Hey ladies... I started taking my pill on Tuesday after having a weeks break. Me and my partner had sex and afterwards I was bleeding a little bit, I carried on bleeding a tiny bit on the night time and a little through the day... It wasn't deep red blood (I know this sounds disgusting sorry ladies!) it was more like an odd colour... I just wondered if it was anything to worry about or was it just due to me coming off my period literally the night before and this hashappened  before. HELP?!?!?