70 days without a period

Hello. I’m 34 years old. Been off of birth control for 8 months. Have been actively trying to have a baby. Last period was March 5th. Have not had a period in 70 days. Fatigue. Weight gain. Bloating. Enlarged breasts. Intermittent nausea. I have taken multiple at home pregnancy tests all have been negative. I am a nurse practitioner so I do have a stressful job. Going to obgyn next Tuesday....... has anyone missed there period for more then two months and have had negative pregnancy tests but we’re pregnant 🤷🏼‍♀️