Please help what this can be?

Shamiq

Have been having irregular period since June 2018. I blame stress and overweight for that.

My periods so far

June: 18-22

Missed July

Aug: 27- 30 ( induced by taking progestrone)

Missed september

October: 30- 3sept

Missed November

Had unprotected sex thrice(24, 27, 30 november) around 7 days before my predicted period date(1 dec).

Since this morning i am suffering very bad nausea, bloating, sharp boob pain especially on left side. No idea about my temps or ovulation as everything is messed up.