Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care for severe breathing difficulty, chest pain, fainting, sudden severe abdominal pain or heavy bleeding with weakness or dizziness.
Contact your fertility team promptly if you have worsening abdominal pain, repeated vomiting, increasing abdominal swelling, reduced urination, fever, foul-smelling discharge or trouble keeping fluids down.
Also call about heavy bleeding or pain that is not controlled by the medicines they recommended.
After a positive pregnancy test, severe one-sided pelvic pain, shoulder-tip pain or faintness needs urgent assessment because these can occur with an ectopic pregnancy.
Mild cramping, bloating and light spotting can usually be discussed at routine follow-up if they are improving.
Every sign above is quoted from the sofidex article on In vitro fertilization. If you are not sure, err upward — it is always reasonable to be checked.