Am in early 40s. My cycles were clockwork, even during very stressful times during my life.

But, for the last couple of years, my cycles have been all over the place, from shorter, to longer... I do the LH test strips to figure out if I am ovulating and to figure out if I can predict when my next period is coming.

Have been to the doctor, and things seem normal. She tells me my body is adjusting.

I'm considering birth control just so that my periods are more predictable. It's a pain having to guess. Then, sometimes my periods are very short (3 days), and other times they can last 2 weeks. The amount of flow also fluctuates.
Sometimes barely noticeable, other times Niagara Falls.

Cannot get booked with the doctor until the summer (gasp!). She's in high demand.

Any tips?