TTC just before husband leaves

Jessie

My husband is headed to S. California for deployment training and my fertile window doesn’t start until the day after he leaves (day after tomorrow). We have been baby dancing everyday since the 20th (when I got back from a trip) in hopes it may work out even though it is not quite my fertile window, I’ve also been using Pre-Seed. Since sperm lives for up to 5 days, does anyone think it is possible that I would even conceive? We suffered from a miscarriage on Christmas Day 2018 and have been trying adamantly ever since. I want to surprise him when he gets home (he will be gone for a month) with a P but don’t want to get my hopes up if it isn’t possible that I would conceive. I’m sorry if this is confusing, I’m just desperate at this point...