What you're missing is that transits and progressions don't cause pregnancy. Three conditions have to be met for that to happen: you have to be doing the deed that makes babies, you have to be fertile, and the partner you're doing the deed with has to be fertile too. If any one of those conditions isn't met, there will be no pregnancy no matter what transits and progressions are happening.
Assuming that those conditions are being met, the transits you described don't indicate pregnancy in and of themselves, although transits involving your Moon or your fifth house (or your fifth house ruler) put some emotional spotlight on the "children" areas of your chart. They may bring a heightened desire for a child, but they don't say anything one way or the other about actually having one.
What transits might be happening if and when you do get pregnant are too varied to list. It's much easier to see the astrological markers in hindsight than beforehand.
There are a few progressions that might assist your efforts, if you try to conceive when they're happening, but lack of them doesn't necessarily mean it won't happen, and having them doesn't always mean it will, just that the odds are swayed somewhat in favor:
- Progressed Moon in a visible phase, that is, somewhere between first quarter and last.
- Progressed Moon or the progressed ruler of your natal fifth house in a stronger position than it is in your natal chart. If either of those is in fall or detriment in your natal chart, that weights the odds somewhat less in favor of conception (but does not deny conception altogether, everything else being equal). If it has moved out of fall or detriment by progression, that gives it a boost. So does moving into a sign where it's domiciled or exalted, if it is not domiciled or exalted in the natal chart.
- If the ruler of your fifth house is retrograde in your natal chart, having it turn direct by progression can be a fertility boost.
- If your Moon or fifth house ruler is in Gemini, Leo, or Virgo, that's considered a barren testimony, because traditionally, those are the barren signs. Doesn't necessarily mean you won't be able to have children, but it's one testimony that suggests you are not super, super fertile. If it is in one of those signs natally and has moved out of it by progression, that gives a boost to your fertility. If it's moved into a water sign (Cancer, Scorpio, or Pisces), better still: the water signs are the most fertile ones. (If Moon is in Scorpio, that's a mixed testimony right there: Scorpio is Moon's detriment sign, but it's a highly fertile sign. Might be more helpful than you would think at first glance.)
- Progressed Moon or progressed fifth house ruler in a water sign, especially if it is not in a water sign in your natal chart. Bonus if it's in Pisces: that's an extra fertile sign because it's both a water sign and ruled by Jupiter. Sagittarius may also be helpful for this purpose, even though it's a fire sign, because it's ruled by expansive, fertile Jupiter.
- If your natal Moon or fifth house ruler is combust (within 8.5 degrees of the Sun), you have a better chance of conceiving when it is no longer combust by progression.