Green Days Gone By

Using persona as contraception, which has given us both a very heightened sense of both of our hormones and moods ... (for those that haven't heard of it, she pees on a stick and it can tell day of cycle, fertile or not, ovulation day etc.).
It's great if you want to have messy unprotected spontaneous sex on days it shows as 'clear' or 'green' post-ovulation, but it highlights the progression of time and leaves me focused on missed opportunities.

The sexual side of our relationship is pretty non-existent, and this compounds the desperation, depression and sadness I feel about this.

28 days of persona run like this:

1-4 I guess not (her pref, not mine) machine's light is green...
5-7 red light appearing anytime now so, errr prob not a good idea... Plus, she'll still be feeling 'unclean'...
7-13/14 if in this particular cycle she's vaguely interested in sex, this will be the few days when we're likely to try; I by this point am quite a stampy randy bear, likely to be quite brave in terms of risking slapped hands and slighted ego. I ache for her on these days, waking every morning early with a hard on of pornstar proportions. When I come, it goes everywhere, especially noticeable as I have to pull out on these days. It's a good month if we manage one or two times to make love here, the loved up oxytocin highs lasting and bonding over following two weeks. She likes it rougher over these days too, and will come as hard as me.
14-19 By now, I arise every morning to pee and look at the blasted machine, cursing it until its light goes green (often day 18). By now withdrawal is pissing me off (if we've made love more than once) and I want to flood the neck of her womb with my cum, preferably whilst kissing her hard and holding her tight. She however at this point of her cycle has lost all interest, and so she does guilt whilst I do tenderness mixed with hard-to-hide frustration. If we're getting on badly, I start to notice other women (I'm pretty fixed on her the rest of the cycle) and she starts to notice everything in our world that needs domestic attention. We row.