Anyone want to have a guess whats wrong with me..literally haven't got a clue

[mum2boys1504]

So ..symptoms
Regular periods always on time every 30 days but..
Weight gain of 2 stone despite regular gym healthy diet (2 years of weight gain)
Breastfed for 3 years and couldn't lose any weight . Now stopped (3months ago)
More and more hormonal every cycle convinced I am pregnant every cycle then get period like clockwork
Since stopped nursing 3 months ago I have been piling on even more weight despite doing more excersise and eating better and drinking more water
Still smell milk when sweat at the gym
And now for the first time I'm 4 days late but negative tests
Have cravings , cramps , bloating, very tender boobs and itchy nipples
No period , vivid dreams fatigue
Thyroid test shows thyroid is fine
Pregnancy tests are negative despite no period
Just don't know what's going on. Could it be the extended nursing that has caused weight gain / hormones crazy ?
And could actually now be pregnant because I stopped nursing 3months ago and now more fertile?
If have symptoms of pregnancy why wouldn't that show on a test ? Not missed one period since gave birth 4 years ago..? So confused..any guesses or actual experience of this very welcome:)😅

I stopped taking my pill on 28th of may 2023. And never hot a period, for like 4 weeks after stopping i didnt get one and i was testing and they were coming back negative
5 weeks later and i took one in the off chance that it may be positive if not id have to call the doctors and question what was happening. I was googling and asking friends what could be happening.
I took the test and it came back positive. Could just be that you are pregnant snd its not showing! Please keep us informed! X

My period came today , 4 days late so maybe the weaning has messed up hormones. Would like to actually start losing weight now as its getting me down. Was convinced I was pregnant..maybe the extended breastfeeding just messed up my body and hormones?

PCO?