getting pregnant, HELP

Chelsea • Give me all the baby dust.

so glow is saying this is my fertile window from the 9th to I think the 15th. I have very sparratic periods. my previous one went missing for 3 months (pregnancy tests negative). it came back after I got my tonsils out. now i suffer from ibs, migraines and acid reflux so I think the stress of those makes it disappear. we have been trying for a good solid 6 months. we recently started using the lube Preseed. any advice?