Hello friend
Both of you have Saturn in your 5th house, which is unfavourable for romance, fun, conception, and health of the children.
Her Saturn is exalted in Libra, yet Libra Saturn is gentler, mostly concerned with morality and correct relationships (although hers is retrograde).
Scorpio Saturn is tough and harsh for anyone, suggesting pain, hard lessons, and restricted desire;
Scorpio Saturn people are tough and harsh, because their life has not been easy.
Both of you have Mars in your 5th house (I think hers is on the cusp in the Placidus system).
Mars in the 5th house is favourable for romance, fun, conception, and health, energy, and activity of the children (even if hers is detriment and retrograde)
Mars in the 5th house suggests assertiveness, energy, and willingness to take risks in romance, games, investments, and children/parenting.
Scorpio Mars is especially strong and energetic, while Libra Mars (especially retrograde) is more passive and gentle and wants to do the right thing.
However, you have an exact Mars-Venus square, in the 5th house and 8th house with your 5th ruler; this may be even more difficult than a Scorpio Saturn.
This suggests considerable difficulty with dating, romance, fun/games, conception, health of the children, and relationships with the children.
Often this means excessive passion, competitiveness, anger, frustration, aggression, love/hate, extreme situations, including injury/death with the 8th house
You are very fortunate that you found a man and a stable relationship, and that you were able to conceive; but that is only half the difficulty!
(poor health of the child is likely, your relationship with your child might be very difficult, the domestic atmosphere might not be ideal for children)
Your friend also has an afflicted 5th house, but it is afflicted by the benefic 11th house (friends) not the malefic 8th house (sex/death/extreme situations), and her house ruler is not afflicted.
Someone with Libra planets is more receptive to other people and starts relationships more easily; but keeping a relationship is difficult
She is fortunate to conceive many children, and her children will likely be physically healthy, however, she has different problems;
the opposition of her Sun and Mercury to her 5th house suggest that her social life/friends/people interfere with romance/conception/raising children.
Possibly this manifests as separation/divorce and future difficulties with her children.
Also, since her Sun and Mercury oppose her Mars, your friend may be very argumentative and passive-aggressive (with Mars in Libra);
finding a relationship may be easier for her, but keeping one will be difficult with anybody, and she will have conflicts with her children as well.
People with Libra planets tend to attract relationship problems and legal problems in the houses involved;
people with Scorpio planets tend to attract more extreme problems involving sex, violence, death, injury, profound change in the houses involved