Im not actually seeing a huge problem here.....
Your 5th house of children is ruled by Virgo, which ruler is Mercury. The other sign overlapping a house really isnt important to the house (astrology only looks at the cusp of the house unless other planets or activities are going on in the overlapping sign).
A virgo 5th house does show some potential for delays in children, and indicates a small family, but tends to also be fertile enough to grant one or two children at least.
Mercury is in your 1st, so children will most likely take up a lot of your energy and be a strong factor in your self-esteem and life! This is usually also a very beneficial placement for parenthood, and a good strong position for your children themselves...
You do have some harsh aspects with mercury though; opposite neptune, opposite uranus, squared jupiter. -------- Though, being that Mercury is only the house ruler of the 5th, these aspects may not be very strong in regards to your fertility alone. At best, it could show some heartache and trying times associated with trying to conceive, and perhaps a need to take a different/unique approach to the way you are attempting to get pregnant, etc.
So overall, things look pretty decent in regards to your fertility to me. Just about average.... how long have you been trying to conceive?