Have you tried getting a doctor's consultation to see if they may be having fertility trouble? Also, check if their needs are met (healthy, fed, happy etc). Both the male and the female may be having fertility trouble. I once had a couple with a 'definite' and 'would be nice', they only had 2 kids, and when I gave the man a consultation I found out he needed the boost. Hope I helped!
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Cheers, Midii smile
Yay! My first set of triplets!