hi Lady_R, sorry to hear your TTC journey has been a bit bumpy, but congrats on getting some tests done
i feel sure it helps to be proactive, and you have more to focus on then stressing ykwim.
i can't recommend a FS but i used to work in a lab before i was a SAHM. it is recogmended that the SA sample be at the main laboratory (where the test is to be performed, not a collection center) no later than an hour after it was collected.

we advised people, especially after already having a suboptimal SA, to either deliver the sample themselves to the main lab (saving time cutting out the collection center), or doing the collection at the lab . your DH might be reluctant, i know mine would be !! so i would try the first one, remember not to chill the sample try and keep it at body temp.
i would always say to get a repeat on a SA the test is very subjective, and it doesn't take much to upset the and they may have just been having an off day.
best of luck, HTH