Frustrated 😞

Melanie
I've been TTC #1 for about 9 months now and I don't know what to do. I have irregular periods so that's what frustrates me the most, that's I can't figure out when I should have sex with my boyfriend. We try at any moment that we can but it's almost every 2 weeks, once a week if we are lucky to even see eachother. I just feel like giving up with all this frustration and just seeing everyone with babies makes me cry 😞 My boyfriend wants to keep on trying and he keeps on motivating me. Can someone please give me advice in what I should do, every when should I try having sex, anything 😞