Extremely late period

CD 53. Period is 20+ days late. Had a blood test taken yesterday, and it’s negative ☹️.

I was on birth control for 3.5 years to regulate my cycle, and went off it in December. We agreed to start trying this month awhile ago, but the start day of my last period was January 27th.

I’m SO frustrated. I’m even taking Vitex to help balance things out.

Does anyone have any advice? Maybe some other herbs for cycle support? I’ve read that Vitamin C can help.

Thanks in advance.