At my mother’s house, there is just one toothbrush in the bathroom. And I think about that a lot.

I noticed it a few months ago and it hit me hard. I haven’t been able to stop thinking about it since. It’s become a sort of marker in my mind of life, death, time and family. I realised that one toothbrush is my future.

My mother brought up four children, five if you count the one that wasn’t even hers. At one time she would have brushed her teeth at the end of the day, weary, perhaps frazzled, and there would have been seven brushes in the pot. Then six. Then five when my oldest sister left home. Then four when my father left. Then three, two and then finally, one day, (surely a day that was hugely significant and heartrending for her, but didn’t seem to register at all in my mind…) there was one.

And one day, this will happen to me. Assuming I outlive my husband, after all my children have grown up and left home, it will be just me. Where once there were six toothbrushes, there will only be one. Mine.

And now I think about this every time I brush my teeth and look at their brushes, one less already since my eldest left home for University. One less again when my next daughter leaves in September… One by one, they will all fly the nest and one day, it will be just me.

I think about how that will feel…

Sometimes when I’m really tired, when the demands have come thick and fast, when I crave just a few peaceful minutes to myself to pull myself back together, I look forward to being alone. I’m quite a solitary person and I don’t mind my own company at all. As the years go by I find myself becoming even more introverted, and even less likely to socialise or mingle with crowds. I imagine what it will be like to wake up to a quiet, still house. To go to sleep at the end of the day alone. Sometimes it doesn’t bother me at all. Other times, it fills me with shock and dread. Shock because it slams home how short and fleeting this one life really is, and dread because I sometimes feel motherhood has defined me, so who will I be when they have all gone?

I guess I will find out, just like my mother did.

That single toothbrush caught me off guard. Made me see my mother in a new light. I had never stopped, not once, to think about how she must have felt as we one by one drifted away. I had never, until that moment, stopped to wonder if she ever feels lonely, living alone. Waking up alone, going to bed alone. I felt a surge of guilt and then a surge of fear. That solitary toothbrush stood for so much. A life lived in love, giving more than taking, nurturing, protecting, feeding and clothing and then at the end of it all, sitting alone in a small house, with one of everything.

I wonder how often she looks around and thinks there used to be lots of pairs of shoes in the hall, lots of coats on the hook, lots of mugs in the cupboard, lots of voices and songs and footsteps and calls in the night. I wonder if she wakes up in the morning and thinks, what shall I do today? Who needs me? Is it liberating or lonely? Or both?

I will one day find out.

I have loved being a mother. But I have also understood that a big part of being a mother is learning to let go, almost as soon as you hold them for the first time. They grow so fast and growing is always a form of leaving. They start to crawl, then walk, then run. One day they pull their hand out of yours in case their friends see. One day they tell you not to kiss them in public anymore. One day they ask if they can go out on their bike without you. One day they leave home and you have no idea where they are or what they are doing most of the time, and you have to live with it. Because they have to do it.

At the moment, my eldest is almost twenty and living in another country. I miss her but I want her to do exactly what she is doing. My second eldest will be leaving soon too. My household will shrink again. My eldest son will be going into his final year of school next month and will be making decisions about what he wants to do with his life next. He doesn’t need me for much these days, but I am very lucky that he does still want me. My littlest baby is no longer a baby, no longer so little. He grows taller every time he walks in the room. He has started to strive for independence lately; taking showers by himself instead of me running him a bath, riding his bike down the lane alone, rushing ahead of me to prove he can do things. It’s even harder letting go of the littlest one, but let go I must.

And what I must also do is prepare myself for the time when they have all gone. When I wake up to a quiet, still house just as my mother does. When I go to bed alone and hear no voices or footsteps in the night. For a time when I barely have to run the washing machine. For a time when I only buy the food that I like. For a time when I no longer walk around the house picking up stray shoes, bags, books and toys. For a time when I don’t find random piles of stones and sticks in strange places. For a time when at the end of the day, there is just one toothbrush and me.

I hope the way I feel is pride tinged with sadness, a dose of nostalgia mixed with relief that my time is my own. Imagine how much more writing I will get done! I hope this is how my mother feels at the end of the day when she reaches for that solitary toothbrush. I hope she feels a surge of pride for bringing us into the world and then sending us on our way, fully equipped. I hope she knows it was a job well done, despite the hard times and tough times. I think that I should tell her how hard that one toothbrush hit me, how much it made me think of the speedy retreat of days gone by.