I’m 20 and since I got my period at 12 my cycle length has been 26-28 days. Since I’ve stopped birth control completely and started TTC my cycle length changes every month from 28-31 days.. is it normal for your CD to change every month or would that be considered as irregular? I’m starting to think something is wrong with me.. since June my boyfriend and I have been having unprotected sex almost every day every month including during my fertile week and nothing ever happens.. I get periods every month.. I never miss a month. He has two girls already so I feel like it’s me that can’t make a baby 😭💔