unusual symptoms.

So I got done with AF last Friday, starting Monday I was having some spotting (Which has continued thru today, Wednesday). I have also had some seriously bad gas, which is normal while on AF but not after. The spotting is pink or red, not brown like old blood. Plus DH and I have only had sex once on Sunday. Has anyone every experienced something like this before? I know it's probably normal but it's new to me so it's really weird.