TTC...

So me and the other half are TTC child number 2... so this is the week I'm ovulating, baring in mind tommorow is the last day of ovulation and we only had sex once. My fiancé is tired bless him as he's been working crazy shifts this month but I slightly feel as though once in the time I'm ovulating isn't much and I'm less likely to conceive and I'll have to wait till I'm ovulating again 😔 I know you can't and should rush things but our daughter will be 3 soon and I'm feeling very broody lol. Do you have to have sex every other day when ovulating for a chance to conceive or is it really just hit or miss? Sorry if it sounds like a stupid question!