First of all I want to acknowledge that we are in a very fortunate situation to be in this dilemma.
For context, our mortgage is huge and we struggle to make ends meet each month. We have no savings and a small amount of credit card debt. Our respective parents all have good pensions and are comfortable in retirement.
My parents have recently offered to pay for some fertility treatment for us which will cost approx £10-15k. We are very grateful and thanked them profusely. We have had some NHS treatment and will continue to have this, but the NHS cannot do anymore than they are already doing.
Due to the relationships being a bit different - still loving and seeing regularly but not as close- PIL do not know about the fertility treatment. They have just told us that they are going to give us a very significant amount of money. They have made it clear that although it is our choice they think it would be best if we put it on the mortgage. After our credit card debts are paid off and some essential house repairs completed the remaining sum should be around £40k.
The dilemma is whether we should still accept the money from my parents for the fertility treatment, or if we should return/refuse it. DH’s feeling is that the money from my parents was freely given for a particular purpose and so we should accept it, and that as his parents intended their money to go on the mortgage that is what we should use theirs for. I feel guilty accepting the money from my parents now that our financial situation has changed.