Rarity you lucky pony you! Hopefully it all works out in the end and they become a beautiful couple.

Oh hey, an update!

This is getting interesting.~hug

Wow this story is getting very interesting to read it has my full attention now keep up the good work update more soon

My, my, Mister Rarity. How long before you want Twilight to make another potion?

Wondering if said potion is a little too potent for the birth control. Since it's supposed to fix the whole feather flu issue.

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Well since the problem was a lack of 'little swimmers' I don't think the potion will beat protection. Though they normally swim around for a few days, so if Spitfire forgot to keep up with her protection the next few days there could be an accident. Conception isn't immediate, sperm last several days, but the egg is only good for a short period (want to say less than a day) in the tubes before it's no longer viable. That's why you're supposed to have sex at least every other day, so sperm is there to meet the egg whenever it shows up. Unless I've completely messed up my biology.

7573077 Nope, you're correct.
Yet, there are some flaws:
1) Birth control, whether oral or an implant secreting the required chemical, will effectively stop the estrus cycle. No egg, no pregnancy.
2) The potion is intended to increase sperm count. Not change a mare completely into a stallion.
3) You're using logic with magical talking ponies, it doesn't work.
4) This is Abyss, he'd have Spits get pregnant for the laughs if it furthered the story. Or, as Spitfire was thinking she wants to start a family, she'd get pregnant for a surprise happy feels ended.
5) Last one, I swear! To quote a certain chaotician, "Nature will find a way."

Personally, I'd go for 4(b), pregnant for surprise happy feels.

7573118 derpicdn.net/img/2016/4/12/1130583/large.png
Pregnant Spits is best Spits.

7576621 orig10.deviantart.net/fb7c/f/2013/279/9/a/pregnant_spitfire_by_xniclord789x-d6pf8mz.png

7578281 derpicdn.net/img/view/2016/4/12/1130586__safe_oc_spitfire_offspring_pregnant_mother+and+daughter_headband_parents-colon-canon+x+oc_artist-colon-faith-dash-wolff_parent-colon-spitfire.png

7578303 The only other ones I can find are creepy looking. Did find this tho.
img00.deviantart.net/c7f7/i/2013/006/c/c/serious_and_stern__spitfire_by_marzzel-d5ql4l1.jpg

7573118 Life, will find a way!

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