First period since birth

Omg i have just got my first period since being pregnantand giving birth my son is 3.5 months old. I do not miss this feeling at all. Before pregnancymy period was quite heavy and irregular so it will be interesting. I have just taken my son off the boob and am exclusively pumping to get him ready for when i return to work so im thinking thats the reason my period has returned. My symptomsbefore were bad now i just feel Really bloated. Anyways have a great day