Had retrieval july 24 Will my period be normal and come back during the same time next month? For example, if I get my period July 31st would the following period come around that time next month like August 31st? My periods are usually around 28-30days apart so I didn't know if the retrieval would mess it up and the next one would come early like 15 days early or something, after this July period, since I am not on any oral contraceptive?

Also, I am assuming whether I am going with another retrieval or FET the official start for either cycles wouldn't be until I begin baseline testing which is the 1st day of my next month's period right?