Worrying won't help
My husband and i tried for 2 years, my first year off the pill I had not periods at all (undiagnosed PCOS, as I found out!). No point in stressing, my Dr was able to sort it out, after clomid for a year or so then did laparoscopy and removed a small benighn lump, and a few months later - became pregnant. It took a long time but I tried to stay philosophical, and tried to remind myself all along that if it never happens, then it never happens. I still have a great family, best husband in the world, good life. Life doesn't necessarily treat us all the same. So as it is I feel pretty lucky - I should mention I finally fell pregnant at 39, so time was truly running late but I couldn't think that way or I would have gone nuts.
Another risk of too much worry is alienating your partner if you obsess too much. My best friends husband left her when their baby was 1, there are obviously many reasons but a big one is that he felt totally alienated by her single minded 'baby-drive' and he felt less important than the baby process... he stuck around for a while but gradually fell out of love - and she is devastated as he truly was the light of her life - just in her driven state, she didn't/couldn't show it. YMMV.
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