Baby Fever

Any tips on how can I deal with baby fever? My beautiful daughter is almost a year and a half and recently I've been wanting another baby SO BAD to the point of having pregnancy symptoms even though I'm not pregnant. Unfortunately financially we really can't afford another child right now with all the setbacks in savings due to covid. No matter how much I tell myself it wouldn't be good for anyone if we had another right now I just can't get the thought out of my head and its only made worse by the pregnancy symptoms. What do I do 😫