We're finally pregnant, over a year worth of trying! We can't be more excited.

So I've always had my periods, either 28-35 days apart, they've been pretty irregular since I was a teen. My last period started May 9th and it was extremely heavy, plus it lasted for 8 days. The previous month, April, I didn't have a period, because I had two periods in March.

I'm just wanting to know how I calculate it, with even just an estimate. The Clear Blue weeks estimator tests reads me at 2-3 weeks, but the instuctions say that a doctor would perceive it as 4-5 weeks along.

Can anyone help me kinda figure this out?