Thank you for your question. Candidal yeast infections are extremely common in women, and are easily treated with antifungal medications. However they can reoccur, as in your case.
The good news is that this infection is superficial and does not cause any long term damage to your reproductive tract.
There has been new data from lab tests showing that there can be some interaction with Candida and your partner's sperm, which can result in a reduction in sperm quality. However more conclusive data is needed to show whether this affects your chance of conceiving.
Furthermore, most infections are short lived and easily treatable by either your GP/Gynecologist/Sexual health Dr so if you are concerned, just get it treated as soon as possible.
All the best!
Wei Sheng
Dermatologist/Sexual Health Specialist